First: Kamala Harris brings out the big dogs as former Presidents Obama and Clinton hit the trail in support of the VP. Obama's direct message to Black men: it’s "not acceptable" to sit out this election. 

Plus: Campaigning in Detroit, Donald Trump warns "this whole country will end up being like Detroit if she's your president." 

And: In our battleground beat, we head to Pennsylvania, the state most strategists think will decide the fate of the White House. 

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