https://thehill.com/homenews/senate/467828-democrats-see-hopes-rise-in-senate-with-impeachment
Impeachment is raising the likelihood that the Senate will be a real battleground next year, and that Democrats could regain the majority.
Much will need to go right for Democrats to take back control. They would need to net three seats and the White House, and that’s with many in the party expecting to lose Sen. Doug Jones’s (D) seat in Alabama.
Yet Democratic hopes are rising given the steady series of negative headlines surrounding President Trump, which have put Republicans on the back foot.
GOP senators are likely to have to vote on Trump’s impeachment before voters go to the polls next November, which could be a problem for vulnerable incumbents such as Sens. Susan Collins (Maine), Cory Gardner (Colo.), Martha McSally (Ariz.), Joni Ernst (Iowa) and Thom Tillis (N.C.).
Four of them were outraised by their Democratic opponents in the third quarter of 2019 and all five have higher disapproval than approval ratings in their home states, according to a Morning Consult tracking poll.