The Latest: Obama to speak on next-to-last night of DNC

WASHINGTON (AP) - The Latest on Campaign 2016 ahead of the Republican and Democratic presidential nominating conventions (all times EDT):

10:15 p.m.

President Barack Obama is slated to speak at the Democratic National Convention on Wednesday, July 27.

That's according to two sources familiar with the plans. The sources requested anonymity because they had not been authorized to speak about the schedule.

Obama's address to Democrats will come on the next-to-last night of the nominating convention in Philadelphia.

Massachusetts Sen. Elizabeth Warren has been invited to speak on the first night of the convention.

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Associated Press writer Kathleen Hennessey contributed.

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9:45 p.m.

House Speaker Paul Ryan is adding his voice to GOP criticism of Supreme Court Justice Ruth Bader Ginsburg's disparaging remarks about Donald Trump.

Ryan calls her comments "very peculiar" and "inherently biased and out of the realm."

Ginsburg said in an interview with The Associated Press last week that she didn't want to think about the possibility that Trump would be president and predicted that Democrat Hillary Clinton will win.

Ryan made his comment on CNN at an event billed as a "town hall."

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9:30 p.m.

House Speaker Paul Ryan says Donald Trump should pick a conservative as his vice presidential nominee - "to assure conservatives that conservative principles are adhered to and maintained."

Ryan didn't offer a specific suggestion during an hour-long appearance on CNN Tuesday night billed as a "town hall."

But Ryan, who was the GOP's vice presidential nominee in 2012, says the pick should be "someone who is going to advance conservative principles and has a proven track record of doing that."

Ryan's emphasis on conservative credentials underscores many Republicans' discomfort with Trump's own spotty conservative bona fides.

Ryan, who hesitated for weeks before endorsing Trump, acknowledges that Trump is "new to this and he's been on different sides of different ideas."

The Republican convention begins next week and Trump is expected to unveil his vice presidential pick this week.

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9:20 p.m.

The NAACP says Republican presidential candidate Donald Trump has declined an invitation to address the group's upcoming convention in Ohio.

NAACP president Cornell William Brooks told CNN Tuesday that the presumptive GOP nominee had rejected the invitation to address the nation's oldest and largest civil rights group.

Presumptive Democratic nominee Hillary Clinton is slated to address NAACP members in Cincinnati on Monday, which is also opening day of the Republican National Convention across the state in Cleveland.

Trump's absence would break with the recent tradition of both major party nominees speaking to the NAACP convention.

The NAACP is saying on Twitter that "you cannot run for president and skip the opportunity speak on the nation's civil rights agenda."

Trump's campaign did not immediately comment.

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8:40 p.m.

Donald Trump is beginning his rally outside Indianapolis with prepared remarks about the police officers gunned down in Texas last week, saying, "Our whole nation grieves and mourns for the loss of five heroes in Dallas."

Trump says the police "are not just part of our society, they are the best of our society."

Trump is once again calling himself the "law and order" candidate.

He is also acknowledging the deaths of men in Louisiana and Minnesota at the hands of officers, saying: "It was tough to watch. We have to figure it out." He questions whether inadequate officer training or "something else" was responsible for the incidents.

President Barack Obama spoke at the memorial service for the police Tuesday in Dallas.

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8:30 p.m.

Indiana Gov. Mike Pence is telling a crowd of Donald Trump's supporters that the Republican presidential candidate "hears the voice of the American people."

Pence is the latest vice presidential candidate to hit the campaign trail with Trump. The two appeared together at a fundraiser earlier Tuesday.

Pence says Trump understands the American people like no one since President Ronald Reagan. His voice raised, Pence says to thunderous applause that the country cannot let Hillary Clinton get elected and calls Trump "a good man."

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7:30 p.m.

The Federal Aviation Administration says the skies over the Republican National Convention in Cleveland and Democratic National Convention in Philadelphia will be no-fly zones.

The agency has posted public notices to pilots on its website that they are to stay out of a 34-mile circle around each of the conventions. Exceptions include law enforcement, military aircraft supporting the conventions, approved air ambulances, scheduled commercial airline flights to local airports and cargo flights operating under Transportation Safety Administration security procedures.

Nearly all other flights are banned, including drone flights, training flights, utility surveying, model rocketry, aerobatic flights, and gilder, seaplane, ultralight, parachute, hang glider, balloon and banner-towing operations.

The bans will be in effect from July 17 to July 22 in Cleveland, and July 25 to July 29 in Philadelphia.

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6:30 p.m.

Elizabeth Warren has been asked to address the Democratic National Convention on its first night in Philadelphia later this month.

That's according to an individual familiar with the discussions who requested anonymity because the person had not been authorized to speak publicly.

Warren is being vetted as a potential running mate by Hillary Clinton's campaign. It's unclear whether the speaking slot means the Massachusetts senator has been ruled out or if the schedule could change if she's picked.

Vice presidential picks tend to speak later in the week.

Warren is a passionate voice for the liberal wing of the party, and her support could help Clinton shore up support among voters on the left, particularly backers of Sen. Bernie Sanders.

Warren has also been a scathing critic of Donald Trump.

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4:59 p.m.

Young Americans have education and the economy at the top of their minds as they think about this year's presidential election. But their thoughts on some of the other top issues facing the country ?- and which of those issues are most important to them -? vary among young people from different racial and ethnic backgrounds.

That's according to a new GenForward poll of young adults ages 18-30. The poll is conducted by the Black Youth Project at the University of Chicago with the Associated Press-NORC Center for Public Affairs Research.

Asked to choose from a list of 22 topics driving their choice of a political candidate this year, education emerges on top for young Americans, with 31 percent listing it among their top three issues.

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4:36 p.m.

Hillary Clinton says the hit Broadway musical "Hamilton" offers lessons for the nation, telling supporters after a fundraising performance, "Let's not throw away our shot."

The Democratic presidential candidate was speaking at the end of a campaign-sponsored performance of the Broadway smash at New York's Richard Rodgers Theatre.

Without mentioning Republican Donald Trump, Clinton says, the country can't be detoured by those "who play to the worst of our feelings, who would divide us, who would scapegoat us."

"Hamilton" is a Tony award-winning musical about the life of Alexander Hamilton and has been praised by politicians and rap stars alike.

The former secretary of state says she has now seen the musical three times and "I cry every time."

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4:31 p.m.

Fox News says it is suspending its contributor agreement with Newt Gingrich "due to the intense media speculation" about him as a potential vice presidential candidate of Republican Donald Trump.

Jay Wallace, executive vice president of news at Fox, said Tuesday the network thought it was best to stop Gingrich as a contributor to avoid any conflicts of interest.

The former House speaker joined the network in 1999, and his role was suspended in 2011 when he ran for president in 2012. He returned to Fox in 2015.

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4:20 p.m.

Donald Trump presents himself as the "law and order" candidate for president and his country as a land of lawlessness and disorder.

That grim picture may speak to the visceral fears of voters that crime is "out of control," as Trump says.

It does not, though, reflect a trend of declining crime that has stretched over 25 years.

Crime figures are a malleable source of information. Depending on what time period is compared, and which crimes are considered, they can be used to tell a tale of progress or setbacks.

Trump has some statistical support for saying that violent crime is rising in big-city America. That appears to be true, judging by recent stats.

But there's no sign that the long-term and dramatic drop in violent crime rates is ending.

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2:55 p.m.

Senate Majority Leader Mitch McConnell says it was "totally inappropriate" for Justice Ruth Bader Ginsburg to criticize Donald Trump.

Ginsburg said in an interview with The Associated Press last week that she didn't want to think about the possibility that Trump would be president and predicted that Democrat Hillary Clinton will win.

McConnell said Tuesday that members of the Supreme Court shouldn't weigh in on American elections.

"It raises a level of skepticism that the American people have from time to time about just how objective the Supreme Court is, whether they're over there to call the balls and strikes, or weigh in on one side or another," he said.

Ginsburg said if Trump wins, "everything is up for grabs," including the future of the high court. She is the oldest justice at age 83.

McConnell also said he will speak at the Republican convention next week.

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1:56 p.m.

GOP rebels trying to dump Donald Trump as the Republican presidential standard-bearer are gathering in Cleveland ahead of the party's convention next week.

They face long odds against an alliance of Trump's campaign and leaders of the Republican National Committee, all of them pressing delegates to oppose the dissidents.

Countering that, the renegade Republicans are setting up a high-tech messaging system to coordinate with organizers on the convention floor when full sessions begin next week. They also plan ads micro-targeted to delegates' social media pages. The rebels say they have organizers inside at least 35 state delegations at the convention who will help coordinate their drive to let the gathering's 2,472 delegates vote for whichever candidate they want.

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1:20 p.m.

In some ways, tough-talking Lt. Gen. Michael Flynn could make an ideal running mate for Republican Donald Trump. The two men speak with one voice against President Barack Obama's approach to the Islamic State and the need for tighter border security.

The former director of the Defense Intelligence Agency is now on a short list of potential running mates for the presumptive Republican nominee.

But then there's that problem of him being a registered Democrat.

"At this stage, the party affiliation is less important," Flynn told the Associated Press. "If they want a person who believes in the Constitution, who believes in the rule of law, who believes we have big challenges we are facing like illegal immigration, our economic conditions, education, and we have to get those things back on track, then you're speaking to him."

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12:18 p.m.

Hillary Clinton says she wants to do more to prevent "the tragedy of black men and women and children being killed in police incidents."

Speaking in Portsmouth, New Hampshire Tuesday, Clinton said she wants to develop national guidelines on the use of force by police officers and provide "better training on implicit bias."

Clinton said communities benefit when there is respect for the law and everyone is "respected by the law." She praised the police department in Dallas for their handling of the recent shooting.

Clinton said it was time for "real meaningful action" to "end the epidemic of gun violence in America."

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11:39 a.m.

Bernie Sanders says Hillary Clinton must become the next president because she can take on issues like income inequality, climate change and student debt.

During his endorsement of Clinton in New Hampshire on Tuesday, Sanders said his campaign was about people who are "left out and left behind." He says Clinton is prepared to fight to raise the minimum wage, create jobs, expand access to health care and address climate change.

Sanders also said Trump does not share those values. He said Trump would not hike the current minimum wage and would appoint Supreme Court justices that would threaten civil liberties and equal rights.

Sanders has avoided endorsing Clinton for weeks. But he said Tuesday that he was pleased by the updates to the official party platform made over the weekend, which he called the most progressive in history. He said he would work to make sure the party follows through.

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11:35 a.m.

Donald Trump's campaign says Bernie Sanders "is now officially part of a rigged system."

Trump senior policy adviser Stephen Miller says in a statement released during Sanders' endorsement of Hillary Clinton Tuesday that the Vermont senator is "endorsing one of the most pro-war, pro-Wall Street, and pro-off-shoring candidates in the history of the Democratic Party."

He says, "The candidate who ran against special interests is endorsing the candidate who embodies special interests."

Trump has also been taunting Sanders on Twitter, suggesting that he has sold out his supporters.

Trump's campaign is trying to woo disgruntled Sanders supporters opposed to Clinton.

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10:23 a.m.

Hillary Clinton's campaign is topping off her presidential nomination with an event on Independence Mall in Philadelphia the day after the Democratic National Convention ends.

Clinton's campaign has been issued a permit from the National Park Service for a public assembly on July 29, according to a park service schedule of events during the week of the convention. The permit includes a stretch of park near the Liberty Bell and Independence Hall.

The location can host sizable crowds: Pope Francis delivered a speech on religious freedom and immigration in front of about 40,000 people at Independence Hall during his Philadelphia visit in September.

The convention is July 25-28 at the Wells Fargo Center.