Bernie Sanders shouts down protester in Iowa: 'I've got the mic and I'm louder than you'
Bernie Sanders speaks at campaign event in Osaga, Iowa (Youtube/screen grab)

Democratic presidential candidate Bernie Sanders on Sunday faced off with a protester in Osage, Iowa.

Sanders began the event by introducing Ben & Jerry's co-founder Ben Cohen. After Sanders noted that the ice cream chain has been a supporter of fair wages for dairy farmers, someone in the audience began to shout.

After a moment, Sanders yelled back: "I've got the mic and I'm louder than you."

The crowd responded by shouting down the protester with chants of "Bernie! Bernie!" The demonstrator's message was not immediately clear.

Watch the video below.