Celebs call on Trump to release his tax returns
© Twitter/ShannanFerryNY1

Celebrities joined those rallying Saturday in protest of President Trump's decision not to release his tax returns.

"This isn't a partisan issue. This is about being an an American and protecting our democracy, and we know for a fact that it has been attacked and infiltrated by Russia,” actress Debra Messing told MSNBC during a rally in New York.

“The only way that we can know what kind of business ties our president has all over the world is by looking at his tax returns."

The "Will and Grace" star, who supported Democratic candidate Hillary ClintonHillary Diane Rodham ClintonWhite House protests extend into sixth day despite rain Clinton: US is 'losing friends and allies' under Trump Justice Dept releases surveillance applications for former Trump aide MORE during the presidential race, said that if Trump has nothing to "hide" he should release his returns.

"If you release them and you’re not hiding anything, the American people can ... rest assured that at least our democracy is protected," she said.

Comedian Sarah Silverman, who initially supported Sen. Bernie SandersBernard (Bernie) SandersBernie Sanders mocks Trump: ‘He could change his mind tomorrow’ Sunday shows preview: Questions linger over Trump-Putin summit Bernie Sanders: Trump 'so tough' on child separations but not on Putin MORE (I-Vt.) during the campaign before backing Clinton, also showed up to the New York event.

"I was raised to know that it's an honor to pay taxes, it's important to pay taxes," she told MSNBC. "That's part of being an American citizen and helping each other."

"House of Cards" creator Beau Willimon and "Good Girls Revolt" star Erin Darke were on the list of speakers for the New York event, one of the scores of events planned in Washington, D.C., and more than 150 other cities.

Trump is the first president since Richard Nixon who hasn't released information about his taxes. He has said he won't release his returns while under audit, but the IRS has said that audits don't bar people from releasing their own tax information.