"This is the wisest investment I think I could make," he said, adding that beating any of the Republican candidates is "worth a million dollars."

According to Maher's tweets, his presentation of the supersized $1 million check was even a "surprise to Yahoo," which livestreamed his special.

Of course, Maher's not the only star getting involved in the PACtion. Stephen Colbert has his own PAC, Americans for a Better Tomorrow, Tomorrow, that's raised over $1.02 million, according to FEC filings last month.