Republican Sen. Bill Cassidy of Louisiana, a former physician who has spent his career touting the safety of vaccines, will ...

The Freedom Caucus, according to one member, has Chair Andy Harris (R-Md.) and Rep. Chip Roy (R-Texas) taking an informal lead in talking with senators including Graham.

Trump is testing congressional power and Republican fealty on three major fronts this week as he steers the country into a backyard trade war.