 Biden, whose campaign is in free fall after a shambling debate performance last month, has yet to pay much attention to the state beyond by high-dollar fundraisers. He was most recently in New York on June 29th to raise money in the Hamptons and attend a dedication ceremony for the Stonewall Inn Visitor Center in Manhattan a day earlier. He's been appearing in traditional battleground states, including Wisconsin and Pennsylvania, over the weekend as the 81-year-old tries to silence doubts about his age and mental acuity. It's funny, it reminds me, we talked to Tara Ross, who's the expert on the Electoral College a while back, and she talks about how swing states change.