President Obama has yet to endorse the presumptive Democratic presidential nominee, Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE, but he's definitely edging closer.

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Obama just appeared on "The Tonight Show Starring Jimmy Fallon" and spoke highly of Clinton. He said that she "is whip-smart, she is tough, and she deeply cares about working people and putting kids through school and making sure we're growing our economy."

When Fallon asked whether he thought Republicans were happy with their presumptive nominee, Obama said, "We are, but I don't know how they're feeling."