Hillary Clinton introduces running mate Sen. Tim Kaine

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MIAMI-- Democratic presidential candidate Hillary Clinton introduced her running mate, Sen. Tim Kaine, during a campaign event in Miami, Florida Saturday afternoon.

She announced the Senator from Virginia as her choice for vice president on Friday after a rally in Tampa. Clinton praised Kaine's work on immigration reform and gun laws.

“The leader who cares more about making a difference than making headlines,” Clinton said. “Behind that smile is a backbone of steal. Just ask the NRA.”

Kaine, former chairman of the Democratic National Committee, spent four years as the governor of Virginia. He is fluent in Spanish, was a missionary in Honduras and worked as a civil rights attorney.

He didn't waste time attacking GOP presidential nominee, Donald Trump.

"He leaves a trail of broken promises and wrecked lives wherever he goes," Kaine said. "Hillary Clinton is the exact opposite of Donald Trump."

This comes on the heels of the Republican National Convention, which wrapped up in Cleveland on Thursday. The Democratic National Convention starts on Monday in Philadelphia.

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