Why are Michael Bloomberg and Deval Patrick flirting with jumping into the 2020 presidential primary this late in the game? The columnists debate what the pair’s maneuvers say about the state of the race and whether either stands a chance of becoming the Democratic nominee. Then, the anonymous author of a controversial Times op-ed is out with a new book about the resistance inside the Trump administration. The columnists discuss whether that resistance has been effective in constraining the president. For background reading on this episode, visit nytimes.com/theargument