Not disagreeing that he said he wouldn' support him, but that does not make Trump unfit as president. It is like saying someone does support the previous President's agenda (I was one of those) but never would I say that president was unfit to BE the president. That's the difference.

This btw is Gardner's quote
“I will not vote for Donald Trump,” said Gardner in a statement, reversing his decision in August to back the business mogul...
http://www.denverpost.com/2016/10/08/political-fallout-continues-trump-vulgar-comments-women/