They played nice for a while, but that was only to accomplish a peaceful transition of power.

President Obama has kept his opinion to himself about Donald Trump's presidency, but behind closed doors, he's letting his real feelings be known. "He’s nothing but a bullish*tter,” Obama told two friends early last November, according to People.

Still, the former POTUS is staying quiet and letting the people of the country do the talking.

"He’s deeply concerned with what he’s seen. But he’s also optimistic and heartened that citizens aren’t just watching it happen but engaging with neighbors and elected representatives at town halls," the source added.

There's an unspoken rule that the former Prez shouldn't talk badly about the new guy in the Oval Office, and BO has done exactly that.

“He’s very respectful of the appropriate role of a former president and that ex-presidents should not be looking over the shoulder of their successors and commenting on every decision,” says Obama’s long-time friend and political strategist David Axelrod. "Obviously, this now is a unique set of circumstances, but my sense is that he’s going to try and respect that tradition while reserving the right to speak out in given moments when things rise to that level," he added.

If Obama didn't like The Orange One before, he's going to like him a lot less after seeing the commencement speech he just gave to U.S. Coast Guard grads. You have to watch the whole thing!