Fond du Lac, Wisconsin (CNN) - Mitt Romney won't join the millions betting on a lucky Mega Millions ticket, but that didn't stop him from speculating about another possible participant.
At a quick stop at a Fond du Lac diner, the GOP candidate was asked if he would vie for the sky-high payout in the lotto contest.
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Romney demurred but he did unleash a zinger directed at his rival Newt Gingrich's billionaire benefactor, casino magnate Sheldon Adelson.
"I understand that Sheldon Adelson has bought some tickets," Romney quipped to reporters in Schreiner's Restaurant.
Adelson and his family have contributed over 16 million to the super PAC supportive of Gingrich's campaign.
The former Massachusetts governor, who purchased four slices of cherry pie from restaurant owner Paul Cunningham for himself and some staffers, was accompanied by his new supporter, Rep. Paul Ryan.
Ryan said he had frequented the restaurant as a child and gave Romney some local tips.
In the kitchen, Romney asked a chef with a saute pan: "Is that perch or whitefish?"
Ryan explained the so-called "poor man's lobster" dish was actually haddock.
Romney also batted down a diner's question about his vice presidential potentials - though he planned to spend the weekend campaigning alongside one man whose name strategists have mentioned.
"I'm not presumptuous enough because I'm not - I'm not the nominee yet. So until then, I'm not going to think about it," Romney said, then gestured to Ryan nearby. "You got Paul Ryan over there. He wants to say hi I'm sure."