Why no enforcement?
I recently watched a segment on Fox News where Shepard Smith pointedly stated that Special Counsel Mueller's investigation into Russian attacks against the United States in the 2016 election cycle were "not a hoax" and that Russia was, in fact, engaging in "information warfare" against us. President Trump himself has even, however begrudgingly, admitted that Russia did indeed attack us, stating in a tweet: "Russia started their anti-US campaign in 2014 ..."
Congress and the U.S. intelligence community have long known what Trump is now forced to admit: the Russians attacked our electoral process and by extension our democracy. Congress has publicly responded by imposing sanctions on Russia, and our intelligence community is working hard behind the scenes to fight back. But to date Trump refuses to enforce the congressional sanctions, nor will he support the intelligence community's efforts to fight back against Russia. If anything, he appears to be doing all he can to impede these responses.
Why is that?