Aside from the millions of UK voters who chose to regain sovereignty last week, one of the biggest winners of the Brexit vote is potentially Donald Trump. Trump's rise in popularity is in no small part due to the fact that people in the US are tired of the status quo, politics as usual nonsense, and Trump allows for an outlet to that sentiment. Well aware of this fact, and presumably concerned that Trump would be able to capitalize on the Brexit vote,
the Clinton campaign is trying desperately to get past the fact that Hillary was on the wrong side of the vote as quickly as possible.
http://www.zerohedge.com/news/2016-06-26/trying-wash-away-her-bad-judgement-clinton-attacks-trump-following-brexit-results