Sen. Ted Cruz (R-Tex.), the leading advocate of defunding the Affordable Care Act in the budget debate, faced hecklers multiple times Friday during his speech at the Values Voter Summit in Washington, in which he continued to rail against the health-care law.

"The nice thing is the left will always, always, always tell you who they fear," Cruz told the crowd after one of the interruptions. "And they fear you."

One of the hecklers Cruz faced called on him to support a path to citizenship for illegal immigrants.

At one point, chants of "USA! USA!" erupted from the audience, which sought to drown out the protesters.