However, many members of the “Never Trump” movement remain firm in their opposition to Trump, and some prominent party leaders including Mitt Romney, House Speaker Paul Ryan, and former Presidents George H.W. Bush and George W. Bush have refused to endorse him.

Trump said “it would be better” if Republicans unite, but questioned the cost of appealing to a wider base of conservatives.

“I have to stay true to my principles also, and I’m a conservative,” Trump said. “But don’t forget this is called the Republican Party, it’s not called the ‘Conservative Party.'”