DENVER - Paul Ryan meets with one of Mitt Romney's biggest donors Tuesday evening, casino magnate Sheldon Adelson.

According to a member of the Romney National Finance Team, Ryan is talking with Adelson this evening at the Adelson-owned Venetian casino and hotel in Las Vegas. The campaign would not confirm or comment on the guest list for what they are calling a Nevada Finance Leadership Event, choosing to call it a finance meeting instead of a fundraiser. The campaign says the difference is that tickets are not being sold and guests are not paying to attend. They also would not comment on whether Ryan is expected to speak at the event.

Romney fundraisers in public places, like a hotel as opposed to a private home, are open to a pooled press contingent. This evening's event is closed to the press.

Adelson and his wife, Miriam, have given at least $10 million to the pro-Romney superPAC Restore Our Future. They also gave $20 million to a superPAC supporting Newt Gingrich during the primary campaign. Adelson has vowed to spend $100 million to defeat President Obama. He recently accompanied Romney on his overseas trip to Israel.

In the 72 hours after Ryan joined Romney's ticket the campaign raised $7.4 million online with over 101,000 donations, according to Romney spokesperson Andrea Saul.

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