US presidential candidate Donald Trump swayed along to a Christian hymn and said he wanted to "listen" to black voters in a visit to a predominantly African-American church Saturday in Detroit.
He was joined by Detroit native Ben Carson, a neurosurgeon turned political activist who was one of the 16 rivals beaten in Trump's march to the conservative Republican Party's nomination for the November general election.
Trump spoke of social unity and said it was "an amazing day" visiting Detroit, a heavily African-American city still recovering from municipal bankruptcy and the collapse of the US car industry, which remains centred in Michigan.
"I hope my presence here today will help your message reach new voices," he said.
Trump, whose abrasive and overtly politically incorrect style has further alienated minority voters who already heavily favour the left-leaning Democratic Party, lamented the mistreatment of "young black men with tremendous potential."
"Our entire country misses out when we are unable to harness the potential and energy of these folks," he said.