https://www.politico.com/story/2019/09/18/pelosi-nadler-schism-impeachment-1501755 Why is there tension between the 2? In a nutshell, Nadler is looking at DJT from a legal viewpoint, while Pelosi is looking at DJT from a political viewpoint. Since both are politicians and have worked together for 25 years, Nadler should be careful because he is walking on thin ice and should be wearing his pol ‘hat’ to do political business. Why? Pelosi doesn’t want an impeachment because even though it could pass in the Dem-dominated House, it could die in the GOP-dominated Senate, and DJT could use this on the campaign trail to make the Dems look bad and potentially lose the election. However, in public, and especially in front of the cameras, both are careful to present a united front; Behind the scenes, though, Pelosi is against Nadler and his committee already engaged in a formal impeachment process. This mirrors who each represents: Nadler represents the progressives, like ‘the squad’, while Pelosi represents the moderate Dems. This demonstrates the deep rifts in the Dem party and which groups need to be placated. Read the article for more details.