"The point I was making was that when the Dems thought he was one of them, they didn't have the knives out. "
Trump even said that at some Catholic Roast Dinner that he appeared at. I can't remember if it was the same dinner Hillary attended before the election. He specifically said that plenty of the Democrats at the dinner had no problem taking his money when he was a registered Democrat.
That was the Al Smith dinner sponsored by the Archdiocese of New York in 2016. At 2:33 in the video Trump says regarding Sen. Schumer, "... he used to love me when I was a Democrat, you know ..." There were more similar remarks regarding the Democrats. He proceeded to totally roast Hillary.
https://www.youtube.com/watch?v=JOUFsCS7xYE