Presidential candidate Marco RubioMarco Antonio RubioOvernight Cybersecurity: Bipartisan bill aims to deter election interference | Russian hackers target Senate | House Intel panel subpoenas Bannon | DHS giving 'active defense' cyber tools to private sector Senators unveil bipartisan push to deter future election interference Puerto Rico's children need recovery funds MORE on Thursday night insisted he is not dropping out of the GOP primary, despite reports that he was considering doing so just days before his home state's primary.

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Asked by Fox News's Megyn Kelly if he was preparing to drop out, the junior senator from Florida said, "No. I am not dropping out, I am fighting all the way through. We’re going to win Florida."

He added that reports of him dropping out before Tuesday's winner-take-all primary in Florida, which will award 99 delegates, are "100 percent, categorically false."

"We win Florida on Tuesday and this election changes completely, and it gives us the momentum to go forward to win the nomination," he said.