Sanders returning to campaign trail for Clinton
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Sen. Bernie SandersBernard (Bernie) SandersKamala Harris picks Baltimore as headquarters for potential 2020 campaign: report Sen. Casey says he won't run for president in 2020 Women's March plans 'Medicare for All' day of lobbying in DC MORE (I-Vt.) will be returning to the campaign trail next month to stump for Democratic presidential nominee Hillary ClintonHillary Diane Rodham ClintonTrump knocks BuzzFeed over Cohen report, points to Russia dossier DNC says it was targeted by Russian hackers after fall midterms Special counsel issues rare statement disputing explosive Cohen report MORE.

"I look forward to it," Sanders told The Washington Post Friday. 

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"I feel very strongly that Donald TrumpDonald John TrumpTrump knocks BuzzFeed over Cohen report, points to Russia dossier DNC says it was targeted by Russian hackers after fall midterms BuzzFeed stands by Cohen report: Mueller should 'make clear what he's disputing' MORE would be a disaster for the country. I want to do everything I can to see that Secretary Clinton wins." 

Sanders spent a year on the trail for his own presidential campaign, before dropping out and endorsing Clinton last month.

He spoke on her behalf at the Democratic National Convention, but faced backlash from some of his supporters who say Clinton benefited from a rigged primary process. 

Sanders has pleaded with his supporters to back Clinton. Now he's expected to hit the campaign trail to target the working-class and younger voters. 

He plans to visit New Hampshire, Maine, Michigan and Wisconsin — all states where he won primaries and caucuses — as well as others were he had strong support such as Ohio, Pennsylvania and Nevada. 

He'll also campaign for Democratic Senate candidates including Katie McGinty in Pennsylvania, Ted Strickland in Ohio and Maggie Hassan in New Hampshire.