可能性：特朗普效应

CNN News Central’s John Berman and Chief Data Analyst Harry Enten look at how President Trump’s historically low approval ratings in key states—particularly his collapse among Independents—compare to past presidents who suffered major midterm losses. They break down what these trends mean for the battleground map and examine which party prediction markets now expect to win the Senate.

Ainsley Ehlers | cnn​.com • Oct 6, 2026