Democrats insist that their march toward impeaching President Donald Trump is simply about doing the right thing. But a growing number of them see a real political upside, too: It might help them win back the Senate.

Senate Democrats are growing increasingly giddy at the prospect of seeing a half-dozen vulnerable senators squirm for weeks and months about Trump’s behavior before eventually being forced to go on the record to convict or acquit Trump if he’s impeached by the House. While conventional wisdom holds that trying to remove the president could cost House Democrats in battleground seats that Trump won in 2016, there’s a sense in the party that it could improve Democrats’ bid to seize the Senate.
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“It’ll be a very problematic vote in a lot of states,” said Senate Minority Whip Dick Durbin (D-Ill.). “Public sentiment has shifted. The polling numbers suggest much stronger support for pursuing an impeachment inquiry.” - Politico rag