Sanders shuts down supporters who boo Clinton
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Democratic presidential candidate Bernie SandersBernard (Bernie) SandersHarvard law professor: Impeachment could worsen political dysfunction, polarization Gun control debate shifts to hardening schools after Texas shooting Bernie Sanders: NRA to blame for lack of action on gun control MORE shut down supporters on Tuesday who booed when he mentioned rival Hillary Clinton.

Sanders brought up a difference he and Clinton have during an event he held.

"Let me give you an example of one of the areas where my opponent, Secretary Clinton, and I have a strong disagreement," he said.

When people in the crowd started booing after he mentioned Clinton's name, Sanders shut them down.

"I respect Secretary Clinton," he said.

"We can have differences," he added, to cheers.

Sanders and Clinton are battling for the Democratic nomination. Clinton has a 5.6 point lead nationally over Sanders, according to the RealClearPolitics average of polls.