President Donald Trump contradicted his Centers for Disease Control and Prevention head saying he was 'confused' and 'made a mistake' when he told Congress a coronavirus vaccine wouldn't be widely available until the second quarter of next year. Trump also said Dr. Robert Redfield must have 'misunderstood' a question when he told a Senate committee, 'I might even go so far as to say that this face mask is more guaranteed to protect me against COVID than when I take a COVID vaccine.' He opened a major public dispute with one of his most senior doctors at a freewheeling, almost hour-long coroanvirus briefing at which he also disclosed that a White House staff member had tested positive but said: 'They were nowhere near me.' He repeatedly claimed the CDC director's sworn evidence to the Senate was confused, mistaken and that he did not understand the question. 'No, the mask is not more important than the vaccine,' Trump said, telling reporters he called Redfield earlier Wednesday to set him straight. 'Maybe he misunderstood both of them,' he said of the two questions posed to Redfield by U.S. senators that morning.