At the first U.S. presidential debate Monday night Donald Trump blamed Hillary Clinton for birtherism.

“Secretary Clinton also fought it. I mean, you know — now, everybody in mainstream is going to say, oh, that’s not true. Look, it’s true. Sidney Blumenthal sent a reporter — you just have to take a look at CNN, the last week, the interview with your former campaign manager,” he said.

Is it really true that Clinton was a birther?

Bombs + Dollars did some research on YouTube and found a few clips wherein Trump questioned Obama’s American birth.

Here’s Trump on “The View” asking, “Why doesn’t he show his birth certificate?” and saying, “If you go back to my first grade, people remember me. Nobody from those early years remembers him.”

Here’s Trump on the “Today Show” saying, “Three weeks ago, when I started, I thought he was born in this country. And now I have a much bigger doubt than I did before.”

Here’s Trump in December 2015 on MSNBC refusing to admit Obama was born in America:

You can go on and on.

Now Trump says that Clinton was a leader of the birther movement. If that’s true there must be videos of her questioning Obama’s birth and demanding the birth certificate. Here’s the Bombs + Dollars birther challenge: If Donald J. Trump can produce a video of Hillary Clinton on cable news questioning President Obama’s birth, we will donate $5 million to the Trump Foundation that he can spend on anything he likes. Bribing public officials, purchasing a Tim Tebow baseball helmet, actual charity work–it’s up to him. All he has to do is produce a video proving that Clinton made Trump-esque birther comments even one.