Supporters of Sen. Bernie Sanders (I., Vt.) protested what they viewed as unfair practices by Hillary Clinton's supporters at the Nevada Democratic Convention on Saturday.

According to the Las Vegas Sun, the dispute between supporters of Sanders and Clinton began when a voice vote occurred to replace the convention's temporary rules as permanent. Sanders' supporters began to chant, "This is fixed!" and "No confidence!"

The Hill obtained video via Facebook and Twitter of some of the action that occurred.

Sen. Barbara Boxer (D., Calif.) spoke to the crowd and was booed by Sanders supporters. Boxer is a well-known backer of Clinton.

"When you boo me, you're booing Bernie Sanders. Go ahead! You're booing Bernie Sanders!" Boxer said.

Many supporters of Sanders are upset with Clinton and her supporters for what they believe is a primary process rigged in her favor from the beginning, especially because of superdelegates. The vast majority of superdelegates are supporting Clinton over Sanders, making her nomination almost a lock.

Several other members of the Democratic Party's national leadership are also supporting Clinton.

Nevada's caucuses in February allocated 13 delegates to Clinton and ten to Sanders. At the convention, another 12 pledged delegates will be selected for one of the candidates.