President Obama Endorses Hillary Clinton

On Thursday, in a powerful video released by Hillary for America, President Obama endorsed Hillary Clinton for president. "I'm with her," he said in the video, released just hours after he met with Sen. Bernie Sanders, Clinton's main opponent in the Democratic primary race. "Honored to have you with me, @POTUS. I'm fired up and ready to go! -H," Clinton responded in a tweet.

While expected, Obama's endorsement of Clinton marks a full 180. The last time Hillary Clinton ran for president, it was against then-Senator Barack Obama, and she ultimately ended up conceding to him. She later campaigned for Obama, and ultimately won, and Obama made Clinton secretary of state. Now, eight years later, the two will campaign again together — this time for Clinton.

"I don't think there's ever been someone more qualified to hold office," Obama said in the video. While not a direct criticism of Clinton's notorious rival in the general election, Donald Trump, it is stark when compared to an individual who has never held office. "Look, I know how hard this job can be. That's why I know Hillary will be so good at it," Obama said.

Clinton responded on Twitter almost instantly.

"Fired up, ready to go" references the last time the two campaigned together. "Fired up! Ready to go!" had become Obama supporters' motto by the end of the campaign cycle.

It didn't take long for Donald Trump to respond.

Obama and Clinton have remained close since she served in his administration, and Obama had widely been expected to endorse her — even when there remained a possibility that Bernie Sanders would be the Democratic presidential nominee.

On Tuesday night, Clinton formally declared herself the Democratic nominee, although Sanders insists that the race isn't over until the Democratic National Convention in Philadelphia in July.