Thursday night Seema Verma, one of the top members of the White House coronavirus task force and the current head of the Center for Medicare and Medicaid Services, repeatedly dodged when Fox News’ Martha MacCallum grilled her over possible ventilator shortages. Tucker Carlson was so stunned by that exchange he invited Verma on his show Friday night and opened by saying, “I watched that exchange last night, and I must be honest with you, I was really troubled by it. Because you were asked a direct question by Martha MacCallum, ‘do we have enough ventilators in ICU units,’ and you...