Dem Dogfight; Biden's Media Battle; All About That (2020) Base; Impeachment Divide; Gun Control Stalls

2020 Democratic candidates are either reinforcing or recovering from the third Democratic debate, but isn't it time for the candidates to keep their eyes on the prize instead of fighting with each other or doubling down on unwinnable ideas?; Biden's camp deflects the age attacks this week, but decries "vicious" media coverage; Trump revs up his base instead of trying to expand it; Democrats are split after House Judiciary Committee votes on impeachment probe & Rep. Chrissy Houlahan joins to discuss; Universal background check talks grind to a halt. via Knit