Las Vegas (CNN) - Mitt Romney met with Sheldon Adelson - a man who, for many months, helped keep Newt Gingrich's campaign afloat - in Las Vegas Tuesday, a campaign aide confirmed.
They convened at Adelson's office at the Venetian Hotel, where the executive offices of the Las Vegas Sands are located, according to a source with knowledge of the meeting. The meeting involved the two men and a small group of aides, and lasted more than 45 minutes.
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The billionaire casino magnate, who serves as chairman of the board and CEO of the Las Vegas Sands Corporation, originally backed Gingrich and poured millions into a super PAC supporting the former House speaker's campaign.
But when Gingrich dropped out of the race, Adelson signaled he would support Romney, the likely GOP nominee.
Romney's time in Vegas was be busy. He spoke at a campaign event and will appear at a fund-raiser with another high-dollar, high-profile supporter - real estate mogul and reality TV star Donald Trump.
Adelson will not be attending the Trump fund-raiser, but will be present at a smaller reception at a private residence afterwards along with Romney and Gingrich, a source familiar with the matter told CNN.