PHILADELPHIA, PA - JANUARY 26:  U.S. President Donald Trump shakes hands with Speaker of the House Paul Ryan (R-WI) while Vice President Mike Pence (C) looks on during a luncheon at the Congress of Tomorrow Republican Member Retreat January 26, 2017 in Philadelphia, Pennsylvania. Congressional Republicans are gathering for three days to plan their 2017 legislative agenda.  (Photo by Bill Clark-Pool/Getty Images)