It's pretty common for the President to choose a VP that will bring in a different set of voters. I think it's probable that Pence was selected for that reason. As for Biden, I called it that he would pick Elizabeth Warren as his VP for the reason previously stated. However, with his condition, I imagine he's going to need to find a DNC approved candidate. I am calling it now that he will win the nomination, choose his VP, do a few interviews, then admit he has dementia or whatever is ailing him, endorse his VP as President. The DNC only has to approve the pick according to their bylaws. It's a rare opportunity for the DNC to skip the election and hand pick their nominee. No doubt Joe is going to do them a solid, since the did one for him.

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