Sen. Marco Rubio greets attendees during a campaign rally in Las Vegas on Monday, Dec. 14, 2015.
Sen. Marco Rubio greets attendees during a campaign rally in Las Vegas on Monday, Dec. 14, 2015. Patrick T. Fallon Bloomberg
Sen. Marco Rubio greets attendees during a campaign rally in Las Vegas on Monday, Dec. 14, 2015. Patrick T. Fallon Bloomberg