Donald Trump again promotes unproven drug hydroxychloroquine as coronavirus treatment

Donald Trump has again defended the use of hydroxychloroquine to combat Covid-19, contradicting US public health officials. The US President argued the malaria medication was only rejected as a treatment for the virus because he had suggested it. His remarks come after Twitter banned his eldest son for posting a clip touting hydroxychloroquine. There is no evidence the drug can fight the virus, and regulators warn it may cause heart problems.