While changing your ethos is good....

"You have to treat 'em like s**t."
-- Donald Trump on women, 1992


"You once said the best way to treat women is to treat them like doody."
"I never said that. It was attributed to me."
"I see. So you treat women with respect."
"I can't say that either."
-- Donald Trump in conversation with Howard Stern, 1993


"Nobody respects women more than I do. Not even close."
-- Donald Trump, 2016

And considering his comments about his daughter, I imagine the earlier statements are more accurately representative of where he stands.