ABC News senior Washington reporter Devin Dwyer and ABC News correspondent Alex Presha discuss a tight Pennsylvania GOP Senate race between Dr. Mehmet Oz and former hedge fund CEO Dave McCormick. WATCH the ABC News Livestream: https://bit.ly/3rzBHum SUBSCRIBE to ABC News: https://bit.ly/2vZb6yP WATCH MORE on http://abcnews.go.com/ LIKE ABC News on FACEBOOK: https://www.facebook.com/abcnews FOLLOW ABC News on TWITTER: https://twitter.com/abc #ABCNL #SenateRace #GOP #Pennsylvania