Democrats are riding a wave of anti-Trump outrage into the 2018 midterms, while Republicans find new ways to describe their discomfort at President Trump’s long, public breakdown.
Beyond that, historical precedent already puts the party in the White House behind the 8-ball. The House has changed parties four times since World War II: 1954, 1994, 2006, and 2010. All four were midterm elections where the president’s party lost control.
If that trend holds, Democrats will re-take the House, probably by a wide margin. And if that happens, it’s a safe bet that impeachment will follow. In fact, I wouldn’t be shocked if the first thing a newly Democratic House does is take a vote to authorize the House Judiciary Committee to begin an impeachment investigation, especially if Special Council Robert Mueller’s final report recommends it.