Hollywood celebrities are playing politics again in an effort to thwart a Trump victory in the midterm elections.

A video by nonprofit "When We All Vote" features Michelle Obama calling a variety of celebrities and asking them to make sure they're registered to vote in order to have an impact in November.

Tom Hanks, Janelle Monáe, Chris Paul, Lin-Manuel Miranda, Faith Hill and Tim McGraw all make appearances in the video, putting the word out to go vote.

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Radio host Michael Knowles said Tuesday on "Fox & Friends" that celebrity opinions on politics aren't particularly effective.

"Nothing says Main Street American voter like Lily Tomlin and 'Hanoi Jane' Fonda," he said. "I think Democrats really have their finger on the pulse of the country."

Knowles said that celebrities are becoming political spokespeople because Democrats have nothing to say.

He touted some of President Trump's major accomplishments like a booming economy and record-low unemployment nationwide, saying that Trump leaves Hollywood stars with nothing to speak out against.

"They have nothing to say, and when you have nothing to run on, Hollywood celebrities are a good mouthpiece to send it out," Knowles said.

Ainsley Earhardt added that celebrities are a difficult class of people to try and relate to.

"Most Americans are trying to put food on their table and living paycheck to paycheck," she said.

Watch the segment above.

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