The shooting death of a black Trump supporter in Milwaukee has state Republicans calling for a federal investigation.

Bernell Trammell, 60, a dreadlocked activist known for carrying handmade signs through the streets reading “Vote Donald Trump 2020,” and posting them on his storefront, was gunned down by an unknown assailant on his sidewalk Thursday afternoon, police said.

SHOOTING REPORTED NEAR PORTLAND PROTEST 

“Because of Trammell’s well-known political activism and the possibility that his murder could be politically motivated, I respectfully request that United States Attorney Matthew Krueger open an investigation,” said Andrew Hitt, chairman of the Republican Party of Wisconsin, late Friday.

Bernell Trammell was a familiar figure in Milwaukee’s Riverwest neighborhood

Bernell Trammell was a familiar figure in Milwaukee’s Riverwest neighborhood

“No American should fear for their personal safety because of where they live or their political affiliation,” Hitt added.

Krueger’s spokesman, Kenneth Gales, said he could not comment on Hitt’s request.

Trammell was a familiar figure in Milwaukee’s Riverwest neighborhood, frequently pedaling a bicycle or walking the streets with signs proclaiming his eclectic religious or political thoughts.

“He had a lot of different views,” local writer Adebisi Agoro told The Post. “But it was his last view that made people be outrageous with him.”

The pro-Trump signage was stirring up angry posts on neighborhood Facebook pages, Agoro said. On Monday, a man followed Trammell around town holding a sign reading “Sike” — local slang for “not!” or “as if” — to counter it.

Trammell “didn’t have internet, he didn’t have a phone, he didn’t have a dime to his name,” Agoro said. “But he got his message out.”

A new GOP outreach office – opened this year to try to make inroads into the African-American electorate – is just blocks from the building where Trammell lived and was killed, Hitt said