GOP campaign chief: Backing impeachment will cost House Dems their majority in 2020

The chairman of the National Republican Congressional Committee on Tuesday warned that backing the impeachment of President TrumpDonald John TrumpRussian sanctions will boomerang States, cities rethink tax incentives after Amazon HQ2 backlash A Presidents Day perspective on the nature of a free press MORE will cost Democrats their House majority in the 2020 election.

"For the past three years, the socialist Democrats have been obsessed with impeaching the president and backfilling in the reason after the fact," Rep. Tom EmmerThomas (Tom) Earl EmmerTrump Jr. says Sanders won't be 'real competition' if he's the nominee House Democratic campaign arm raised .1 million in January Republicans sense momentum after impeachment win MORE (R-Minn.) said in a statement.

"They have become so radicalized by their hatred of President Trump that they are willing to plunge the nation into a constitutional crisis based on secondhand gossip," he continued.


"Make no mistake about it: backing impeachment will cost the Democrats their majority in 2020," he added.

Calls for Trump to be impeached have grown in the last few days amid allegations that Trump pressed Ukrainian President Volodymyr Zelensky to investigate former Vice President Joe BidenJoe BidenJoe Biden lost his fastball — can he get it back before South Carolina? Where the 2020 Democrats stand on taxes Bloomberg hits Sanders supporters in new ad MORE's son.

A growing chorus of House Democrats is pushing for an impeachment inquiry, piling pressure on Speaker Nancy PelosiNancy PelosiMalaysia says it will choose 5G partners based on own standards, not US recommendations Pelosi warns allies against using Huawei Budget hawks frustrated by 2020 politics in entitlement reform fight MORE (D-Calif.), who has been opposed to impeachment so far.

She is set to deliver remarks on the topic at 5 p.m.

Several Democrats have raised concerns that a full embrace of impeachment could hurt more moderate caucus members who flipped districts in 2018 that Trump won in 2016.

Nearly half of the first-term Democratic lawmakers who flipped districts are now backing impeachment following reports of Trump's call with Zelensky and a whistleblower complaint that is said to be centered on that call.

Recent polls have generally shown support for impeachment in the high 30 percent to low 40 percent range. 

Democrats currently hold a 235-199 majority in the House of Representatives, and generic congressional ballots show them winning by wide margins in 2020.