David Axelrod, who served as a top adviser to former President Obama, on Saturday criticized the push led by Democrat mega-donor Tom Steyer to impeach President Trump Donald John TrumpUS reimposes UN sanctions on Iran amid increasing tensions Jeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Trump supporters chant 'Fill that seat' at North Carolina rally MORE, calling the effort "a vanity project."

“Steyer impeachment ads seem to me more of a vanity project than a call to action. It is-at least this point-an unhelpful message,” Axelrod wrote on Twitter.

“If impeachment becomes a political tool, it will be as damaging to our democracy as the degradations @realDonaldTrump has inflicted on it.”

Steyer impeachment ads seem to me more of a vanity project than a call to action. It is-at least this point-an unhelpful message. If impeachment becomes a political tool, it will be as damaging to our democracy as the degradations @realDonaldTrump has inflicted on it. — David Axelrod (@davidaxelrod) November 11, 2017

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Axelrod’s dismissal of the campaign, titled “Need to Impeach,” comes after Steyer announced on Thursday that he is pouring an additional $10 million into the effort, bringing the total amount he has spent on the push to $20 million.

“Donald Trump is a clear and present danger to the American people, and the almost 2 million Americans who have signed our petition agree,” Steyer said in a statement.

“We’re going to fight even harder to make sure each and every American can make their voice heard, and give them a direct platform to demand action.”

Steyer said Thursday that he is adding two television ads to the campaign, which is already airing one advertisement.

Trump has called Steyer “wacky & totally unhinged” over the campaign.