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Marco Rubio addressed supporters in Miami, saying he's excited about the future of his campaign while taking tough swings at Donald Trump.

"Five days ago we began to unmask the true nature of the frontunner," Rubio said, saying that Trump's numbers are going down and his are going up.

"Right here in Florida we are going to send a message that the party of Lincoln and Reagan and the presidency of the United States will never be held by a con artist."

Watch a clip of the speech above.

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