evidence: Vice President Mike Pence said Tuesday he's not taking hydroxychloroquine, an unproven treatment for COVID-19 that President Donald Trump has vigorously promoted and claims to be taking himself. [...] Experts say it can cause fatal heart arrhythmia. [...] In a statement Monday night, the doctor, Sean P. Conley, said, "After numerous discussions, he and I had for and against the use of hydroxychloroquine we concluded the potential benefit from treatment outweighed the relative risks." The statement does not explicitly say he prescribed the drug for the president.