I bet that nobody else regrets voting for Trump either. In fact, they may become even more supportive as a result. They can always justify his behavior no matter what. If not, just play dumb and blame the media.
Just follow the lead of the whiner-in-chief:
This is the single greatest witch hunt of a politician in American history!
— Donald J. Trump (@realDonaldTrump) May 18, 2017