Sky News
But a newly unearthed video proves that Mr Trump - who had both Bill and Hillary Clinton as guests at his 2005 wedding to Melania - was once rather more fond of his rival.
In a TV interview with NY1 News from 2008, Mr Trump was full of praise for the former Secretary of Sate.
"I think that she is a wonderful woman..." he said.
"I think her history is far from being over… I think she is going to go down at a minimum as a great senator. I think she is a great wife to a president."
"You know, Hillary is a very smart woman, very tough woman, that's fine," he added. "But she is also a very nice person. I know Hillary and I know her husband very well, and they are fine people."
He also had some warm words for Bill Clinton, who's record as president, including his alleged infidelity during his time in office, Mr Trump has slammed in recent weeks.
"Bill Clinton was a great president," he said.
"Look at what happened during the Clinton years, we had no war, the economy was doing great, everybody was happy. A lot of people hated him because they were jealous as hell."
