Among those who campaigned on the ground were Sens. Rand Paul (R-Ky.) and Marco Rubio (R-Fla.), along with former Sen. Rick Santorum (R-Pa.), neurologist Ben Carson and Sen.-elect Joni Ernst (R-Iowa). Sen. Ted Cruz (R-Texas) sent fundraising emails, and former Florida Gov. Jeb Bush headlined a high-dollar fundraiser in Washington this week.
