Former President Barack Obama will head to Philadelphia on Wednesday to campaign on behalf of the Biden-Harris ticket, his first appearance on the trail thus far. 

With just two weeks until the election, Obama will rally support in a battleground state that President Trump won by less than a percentage point in 2016. 

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Current polls show Democratic opponent Joe Biden leading Trump by more than five percentage points, according to a Real Clear Politics average. Philadelphia bolstered Obama's White House victories in both 2008 and 2012, when Biden was his running mate. 

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Meanwhile, vice presidential hopeful Sen. Kamala Harris, D-Calif., has tweaked her campaign events after multiple staffers tested positive for the coronavirus, but her husband, Doug Emhoff, will hold a rally in Philadelphia on Saturday. 

Trump will also head to the Keystone State on Tuesday and hold a rally in the historically blue city of Erie, which flipped red in 2016. Other members of his campaign team will visit the state in the upcoming weeks. 

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Obama criticized Trump in a podcast this week as an “accelerant” of misinformation. He has been largely absent from Biden's campaign, but made a lengthy plea to voters during the Democratic National Convention in August and again this past week in a campaign ad on YouTube.