This story has been updated to include Sen. Lindsey Graham's comments on Monday disputing the original account, and to reflect that Teresa Dailey, a Florida Republican fundraiser who attended the event, offered a different characterization of the senator's comments when she appeared on CNN Monday than she had initially. In addition, the original story should have reflected that Dailey is a Trump supporter.

(CNN) Sen. Lindsey Graham, one of Donald Trump's fiercest critics, is disputing a Florida Republican fundraiser's account of remarks he delivered at a private fundraiser on Saturday, telling CNN that he is still "not supporting" Donald Trump.

Teresa Dailey, a prominent Florida Republican fundraiser and Trump supporter who attended the private event, told CNN on Sunday that Graham called on Republicans to unite as a party and support the presumptive GOP nominee to defeat Hillary Clinton in the general election.

"He did say that we need to get behind him," Dailey said Sunday.

Graham on Monday disputed that characterization of his remarks, telling CNN that he is supporting neither Trump nor Clinton and that "nothing's changed."

He added that he focused on the House and Senate races, but did say that he told donors that he "enjoyed" his recent phone conversation with Trump.

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