President Donald Trump promised last week to campaign for Republican members of Congress after House Majority Leader Kevin McCarthy (R-CA) warned him that the political landscape is not in their party’s favor, the Washington Post reported Sunday.

The Washington Post reported, citing unnamed White House officials, that McCarthy explained the political landscape to Trump in a slide presentation while the President was at Camp David last weekend. According to an unnamed official cited in the report, McCarthy warned Trump of potential outcomes ranging from a scenario where Republicans lose control of the House to another where Republicans maintain control but lose seats.

Amid a wave of impending Republican retirements, most recently including Rep. Darrell Issa (R-CA), and Trump’s own approval ratings, which are at a historic low for a president barely finished with his first year in office, Republicans are taking up a defensive position.

“We are going to have a very challenging cycle,” Rep. Tom Cole (R-OK) told reporters last week. “There’s no question the majority’s at risk.”