“This election looks like a classic collision between the irresistible force and the immovable object. The irresistible force is the elevated share of Americans who disapprove of Trump’s performance as president, which has increased since last December and is now running consistently around 60%.... The immovable object is that this election, in both the House and the Senate, is going to be fought out primarily on Republican-leaning terrain.” What’s going to happen in the House? What’s going to happen in the Senate? What should we be watching for in the months ahead? Ron Brownstein, Bloomberg Opinion columnist and senior CNN political analyst, and a leading student of American elections, presents a tour-de-force look at the polls, data, and what indicators will matter most as we head toward November.