Making his first visit to The Tonight Show Starring Jimmy Fallon as a sitting president, Obama joined Fallon in writing thank-you notes.

Fallon got some of the best lines:

Thank you President Obama’s birth certificate. He used to carry you around to prove he is American; now he needs to carry it around to prove he’s only 54.

Thank you Hillary Clinton for possibly becoming the first f –president. I would have said “female,” but someone deleted the email.

But Obama brought the house down with the last thank-you note:

Thank you Congress. For spending eight years wishing you could replace me with a Republican. Or, to put it another way: How do you like me now?”

… Obama wrote as a photo of Donald Trump appeared on screen.

Both Senate Majority Leader Mitch McConnell and House Speaker Paul Ryan have condemned the GOP presumptive candidate’s statements about the district court judge overseeing a lawsuit related to Trump University. Ryan called Trump’s remarks “the textbook definition of a racist comment” and “beyond the pale.” A handful of Republican politicians have pulled their endorsement of Trump. And a delegate bound to Ted Cruz, who will serve on the GOP Rules Committee, told ABC News she plans to introduce a clause changing the convention rules to let delegates vote their conscience.