As Democratic presidential front-runner Hillary Clinton made her way to a Los Angeles fundraiser hosted by actor George Clooney Saturday evening, supporters of rival Bernie Sanders threw cash at the former secretary of state's motorcade.

The Clinton-Clooney fundraiser is expected to raise at least $15 million for the candidate, according to Deadline. The money Sanders backers threw at Clinton's motorcade amounted to 1,000 $1 bills and was provided by Howard Gold, whose family founded the 99 Cents Only store chain.

Sanders supporters outside Clinton's Clooney fundraiser in LA shower her motorcade in $1,000. pic.twitter.com/ivbu024IcG

— Dan Merica (@danmericaCNN) April 17, 2016

Gold, who is Clooney's L.A. neighbor, held a counter-fundraiser, the "99% Party," for Sanders Saturday evening, charging attendees $27 for a ticket, compared to the $33,400 charged per person at Clooney's event.

"Swimming pools, Movie Stars, and merriment for all! This is happening right next door to Clooney's party for Hillary!" an email invite sent Saturday to Sanders supporters read, adding that "no one [will be] turned away for a lack of funds."

The bills were thrown at Clinton ahead of the "99% Party" Saturday night. "We just made it rain a thousand one dollar bills on Hillary Clinton's motorcade," one Sanders supporter tweeted.

"The #ClooneyCounterparty lines the street leading to @HillaryClinton's 100k/plate fundraiser. #FeelTheBern," another protester tweeted.

The #ClooneyCounterparty lines the street leading to @HillaryClinton 's 100k/plate fundraiser. #FeelTheBern pic.twitter.com/FYEEBjfAGo

— Sanders Fangirl (@sandersfangirl) April 17, 2016

This latest protest comes as Clinton faces mounting pressure for her history with Wall St. and her unwillingness to release the transcripts from her speeches to Goldman Sachs. The 2016 candidate was booed by audience members at last week's Democratic debate for failing to answer questions about her transcripts.

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