President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE is set to host congressional leaders at Camp David early next month as Republicans prepare to defend both houses of Congress in the 2018 midterm elections.

Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellTrump 'no longer angry' at Romney because of Supreme Court stance On The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline The Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power MORE (R-Ky.) and House Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.) will stay with Trump at the presidential retreat Jan. 6-7.

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The summit at the presidential mountain retreat in Maryland comes weeks after the White House and the GOP-controlled Congress scored their first major legislative victory of the year with tax reform.

The tax plan lowers the corporate tax rate from 35 percent to 21 percent and repeals ObamaCare's individual insurance mandate.

Republicans have boasted about the tax cuts Americans would initially receive under the plan, however, the cuts are set to expire by 2025.

Democrats have said the bill is only beneficial to the wealthy and corporations and have said they plan to use the bill's low popularity to campaign in 2018.

Reports surfaced earlier this month that McConnell has privately expressed concerns that his party could lose both chambers of Congress in 2018.

It was also reported that a number of Trump's advisers expressed concerns over the midterm elections in a meeting with the president last week.

Democrats need 24 seats to flip the House and only two to take control the Senate.