Union leaders are turning Labor Day into 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 Day across key battleground states.

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More than 10 of the most powerful labor officials in the country will fan out Monday across Ohio, Pennsylvania, Wisconsin, Virginia, New Hampshire and Illinois, to campaign for the Democratic presidential nominee, the Clinton campaign said in a statement.

Those leaders will include AFL-CIO President Richard Trumka, who will be campaigning in Cleveland, Ohio, with the head of the teachers’ union, Randi Weingarten; and Service Employees International Union leader Mary Kay Henry, who will be campaigning for Clinton in Pittsburgh, Pa.

Hillary Clinton and her running mate, Virginia Sen. Tim Kaine Timothy (Tim) Michael KaineTrump meets with potential Supreme Court pick Amy Coney Barrett at White House Names to watch as Trump picks Ginsburg replacement on Supreme Court Barrett seen as a front-runner for Trump Supreme Court pick MORE, will join Trumka and Weingarten at a Cleveland rally at 2 p.m. ET,

And former president Bill Clinton William (Bill) Jefferson ClintonGOP brushes back charges of hypocrisy in Supreme Court fight Battle lines drawn on precedent in Supreme Court fight Sunday shows - Ruth Bader Ginsburg's death dominates MORE will be appearing at the AFL-CIO's Labor Day Picnic at Coney Island Amusement Park in Cincinnati, Ohio, according to the Clinton campaign.

Bernie Sanders Bernie SandersJacobin editor: Primarying Schumer would force him to fight Trump's SCOTUS nominee Trump campaign plays up Biden's skills ahead of Cleveland debate: 'He's actually quite good' Young voters backing Biden by 2:1 margin: poll MORE will also hit the trail on Labor Day, his first day of active campaigning on behalf of his former rival.

Sanders is spending the day in New Hampshire, a state where he is extremely popular and which neighbors the senator's home state of Vermont.

Sanders is scheduled hold a rally for Clinton at 3 p.m. at Lebanon High School. He has the challenge of convincing many of his younger, more idealistic supporters, to give Clinton, and her more establishment-friendly policies, a chance.

A sizable proportion of Sanders backers remain disillusioned with both Clinton and 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 and are turning instead to third party candidates, Jill Stein of the Green Party, and Libertarian Gary Johnson Gary Earl JohnsonWhat the numbers say about Trump's chances at reelection Presidential race tightens in Minnesota as Trump plows resources into state The Hill's Campaign Report: Biden condemns violence, blames Trump for fomenting it l Bitter Mass. primaries reach the end l Super PAC spending set to explode MORE.