Democratic socialist candidate for president Bernie Sanders wasn’t getting into the Black Friday spirit, spending the day tweeting an angry missive against retail giant WalMart.

Sanders identified WalMart, one of America’s biggest corporations and a behind-the-scenes immigration reform supporter, as an exploiter of workers.

.@Walmart shouldn’t be allowed to pay workers wages so low that many qualify for Medicaid, food stamps, and government housing. #BlackFriday — Bernie Sanders (@BernieSanders) November 27, 2015

Working families shouldn’t be providing welfare to the Waltons, the wealthiest family in America worth over $136 billion. #BlackFriday — Bernie Sanders (@BernieSanders) November 27, 2015

With a net worth of more than $136 billion, the six @WalMart heirs own more wealth than the bottom 42% of Americans. #BlackFriday — Bernie Sanders (@BernieSanders) November 27, 2015

Shoppers, meanwhile, fought physically in the aisles of WalMart stores around the United States, angling for one-time-only deals on merchandise.