Kanye West holds chaotic opening of 2020 presidential bid

US rapper Kanye West's chaotic launch of his unlikely campaign to oust Donald Trump in November's presidential election has sparked anger, concern for his mental health and questions about whether he is seriously running.

Wearing a bullet-proof jacket marked "security," Kanye West broke down in tears during a rambling speech in Charleston, South Carolina on Sunday that was supposed to kickstart his White House bid.

Instead, controversial comments about renowned American abolitionist Harriet Tubman enraged attendees, provoked scorn online and left political analysts scratching their heads about the mercurial musician's true intentions.