In this video Sen. John McCainJohn Sidney McCainMcCain rips Trump for attacks on press NSA spying program overcomes key Senate hurdle Meghan McCain says her father regrets opposition to MLK Day MORE (R-Ariz.) responds to protesters at the National Rifle Association's (NRA) Celebration of American Values Conference in Washington, D.C. Friday. Protesters, before being removed by security guards, shout for McCain to "end the occupation" in Iraq as McCain shuffles to the podium.

"Well, my friends," McCain responds, "We beat you yesterday, we beat you the day before, we'll beat you today, and we'll beat you tomorrow. We won't choose to lose."