State: 38 percent of Indiana voters cast ballots in primary

INDIANAPOLIS (AP) - Indiana's secretary of state's office says 38 percent of the state's registered voters turned out to vote in Indiana's hotly-contested May primary.

Nearly 1.8 million of the state's 4.7 million registered voters cast ballots in the May 3 primary, drawn to the polls by the contested Republican and Democratic presidential nomination races.

Republican Donald Trump and Democrat Bernie Sanders prevailed in Indiana's primary.

Western Indiana's Vermillion County had the state's highest turnout, with 51 percent of its registered voters casting ballots.

Indiana's primary turnout trailed the 22 percent voter turnout in its 2012 primary, but it was just under the 40 percent voter turnout in the 2008 primary.

That year's primary featured a tight race between Barack Obama and Hillary Clinton for the Democratic presidential nomination.