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Dr. Jha: Johnson & Johnson pausing clinical trial for Covid-19 vaccine ‘reminder’ of Trump's ‘absurdity’ to ask vaccine be ready by election day

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Dr. Ashish Jha, the dean of the Brown University School of Public Health, tells Lawrence O'Donnell that Johnson & Johnson pausing clinical trials after an "unexplained" illness is "reassuring that the process by which we are developing the vaccine is working." Dr. Jha says Trump claiming he's immune "sends all the wrong public health messages."