Pennsylvania's blue wall of mail-in ballots cracks further as Election Day nears

Pennsylvania is the ballgame. Are Democrats where they need to be?

The vast majority of Pennsylvania’s mail-in votes are now in.

There will still be two more ballot drops: on Monday and Tuesday. And if the race is close enough, the Election Day arrivals will matter a lot.

The question for Republicans is this: how low can they keep the blue firewall of mail-in ballots?