Those invited include the Republican Senate Majority Leader Mitch McConnell, Democratic House Speaker Nancy Pelosi, the chairman and ranking members of the Senate Foreign Relations and House Foreign Affairs Committees, as well as the Senate and House Armed Services Committees, the congressional sources said on Tuesday.
According to a White House schedule, the meeting is due to take place at 3 p.m. EDT (1900 GMT).
The meeting coincides with growing unease among members of the U.S. Congress, including some of Trump's fellow Republicans, about Trump's decision to withdraw U.S. forces from northeastern Syria, creating an opening for a Turkish offensive against U.S.-allied Kurdish militia who were fighting Islamic State alongside the Americans.