Michelle Obama Michelle LeVaughn Robinson ObamaTo honor Justice Ginsburg's legacy, Biden should consider Michelle Obama National Urban League, BET launch National Black Voter Day The Hill's Morning Report - Sponsored by The Air Line Pilots Association - White House moves closer to Pelosi on virus relief bill MORE is featured in a new ad for Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE, praising the Democratic nominee as a president who would be a good role model for children.

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"Our children watch everything we do, and the person we elect as president has the power to shape their lives for years to come," Obama says at the beginning of the ad.

The first lady says Clinton has spent her whole career "bringing folks together on behalf of our kids."

"She believes that every child deserves a chance to succeed," Obama says.

"Hillary will be a president our kids can look up to. A president who believes in our kids and will fight for them every day. That's why I believe in her."

Obama has stumped for the Democratic nominee in the past and is expected to make more appearances on the campaign trail in the coming weeks.

During a campaign event in Fairfax, Va., Obama slammed Republican presidential nominee Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE — without using his name — for his political inexperience, temperament and reality-TV background and expressed admiration for Clinton.