President Obama formally endorsedfor president in a video released just an hour after he met at the White House on Thursday with her rival,

"I know how hard this job can be. That's why I know Hillary will be so good at it. In fact, I don't think there's ever been someone so qualified to hold this office," he said in the video, which was posted on YouTube and the Clinton campaign website.

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The video was recorded on Tuesday, a day after The Associated Press announced that Clinton had won the delegates necessary to clinch the nomination.

Clinton won primaries in California and three other states that day, securing a victory over Sanders in pledged delegates.

Sanders has yet to concede, however, and has continued to talk about taking his campaign to the Democratic National Convention in July.

That is looking less likely by the hour, and the release of Obama's video endorsement seemed designed to edge Sanders out the door.

In the video, Obama congratulated Clinton "for making history" at the first woman to be the presidential nominee of the Democratic Party.

"She's got the courage, the compassion and the heart to get the job done. And I say that as somebody who had to debate her more than 20 times," said Obama, who defeated Clinton in the 2008 primary.

"I'm with her, I am fired up, and I cannot wait to get out there and campaign for Hillary."

He won't have to wait long. Clinton's campaign announced that the pair will campaign next Wednesday in Wisconsin. Clinton has talked about the tough primary with Obama in suggesting that Sanders and his supporters will eventually unify around her campaign. Sanders supporters have expressed bitterness at times over the nature of the campaign, and Democrats have openly worried about the difficulties they could face in unifying the party.

The final Democratic primary is Tuesday, in the District of Columbia, and Sanders has spoken repeatedly about how all voters should have a say in the nomination.