George Clooney's business partner says the Monuments Men actor was not drinking shots before his blowout argument with casino mogul Steve Wynn earlier this month. "We weren't drunk," Rande Gerber told

George ClooneyGeorge Clooney At The Monuments Men Premiere, in London

As the gossip website previously reported, Clooney and Wynn locked horns at a glitzy dinner in Vegas after Wynn called President Obama an a-hole. The actor shot back, calling Wynn the a-hole, before storming out.

Wynn claimed Clooney exploded because he was drinking tequila, saying, "When he's [George] drinking, he considers himself a close personal buddy of the President. Clooney's fun to be with when he's sober ... If you have a chance to drink with him, you want to get there early, and don't stay late."

"Everybody who's in my business - the casino business - knows to take actors with a grain of salt," he added.

However, Gerber - who was at the dinner - said "No shots were had" and that it was not a heated political debate.

"This wasn't about politics. It was about George standing up for a friend," he said.

Clooney and Gerber (Cindy Crawford's husband) are partners in a tequila company, called Casamigos. They were meeting in Vegas to discuss future business at Wynn's hotels, which already serves the brand. Sources tell TMZ that Wynn's hotels continue to stock Casamigos, despite the blowout.

Clooney is currently shooting Brad Bird's sci-fi Tomorrowland, about a teen bursting with scientific curiosity and a former boy-genius inventor who embark on a mission to unearth the secrets of a place somewhere in time and space that exists in their collective memory. It hits on May 22, 2015. 

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Watch George Clooney arriving with his parents to The Monuments Men trailer: