Donald Trump's National Security Adviser, John Bolton, said the former president did ‘enormous damage’ to the country and the Republican party during his time at the White House.

What Happened: Bolton, in an interview on CNN, said he would not sign the Republican National Committee's pledge to back the party's ultimate nominee if Trump were to be the GOP candidate for the U.S. presidential election in 2024.

"No, I wouldn't sign that pledge. I am not going to support Donald Trump. This is not a matter of party loyalty. I think he did enormous damage to the country and certainly to the Republican party in the four years he served. All that is repairable, and I think it is being repaired, but four more years of Donald Trump could do significant permanent damage to the country and the Republican party."