House Speaker Paul Ryan of Wis., joined by, from left, House Majority Whip Steve Scalise of La., and House Majority Leader Kevin McCarthy of Calif., meets with reporters on Capitol Hill in Washington, Tuesday, Jan. 24, 2017, as he announced that he has invited President Donald Trump to address a Joint Session of Congress on Feb. 28. PHILADELPHIA – Congressional Republicans eager to deliver are about to find out whether Donald Trump can stay focused on their goals in his first appearance before them as president. Trump will speak Thursday to House and Senate GOP lawmakers at their annual policy retreat.