GOP Senate hopeful Dave McCormick votes early to ‘set a good example’ as Pennsylvania Republicans cut Dems’ mail-in advantage

PITTSBURGH — GOP Senate candidate Dave McCormick voted early in this Democratic stronghold Monday — just as Pennsylvania Republicans are cutting into their blue counterparts’ pre-Election Day balloting advantage. “We’ve had a huge push on closing the gap on mail-in ballots, getting Republicans out early. Tomorrow’s the last day to register for a mail-in ballot. So…