Artist and activist Shepard Fairey, who designed the iconic “Hope” poster during then-Sen. Barack Obama Barack Hussein ObamaThe Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon Trump appointees stymie recommendations to boost minority voting: report Obama's first presidential memoir, 'A Promised Land,' set for November release MORE’s 2008 presidential campaign, is backing Democratic presidential hopeful Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE.

“I’m supporting Bernie Sanders because I want to push principles, not personalities,” Fairey said in a video released by the Sanders campaign on Wednesday evening.

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“I’m tired of portraits,” he continued. “I want to make images about people of substance, about the issues they care about.”

The Sanders campaign also released a new T-shirt designed by Fairey with an artistic rendering of Sanders’s “Feel the Bern” slogan and a call for a “political revolution.”

Shepard also said in a statement accompanying the T-shirt that Sanders is the candidate running for president who “embodies the principles of justice, equality, liberty and access to the American dream.”

“Bernie needs help from people like you and me and I think he’ll look out for the needs of people like you and me,” he added. “Pick up a T-shirt and help support Bernie Sanders!”

In response to the endorsement, Clinton campaign spokesman Brian Fallon pointed to Sanders’s criticism of Obama and said the Vermont senator is doing a “poor man’s imitation” of the 2008 campaign.

“Diss Obama by day, do poor man’s imitation of 2008 campaign by night,” he said in a tweet.