Robert F. Kennedy Jr. will be on Capitol Hill this week to garner support to lead the Department of Health and Human Services.Kennedy is facing backlash for pushing anti-vaccine conspiracy theories and for a recent report that one of his advisors petitioned the government to revoke its approval of the polio vaccine – a medical breakthrough that’s considered to have halted the disease for decades.President-elect Donald Trump is trying to ease worries about his pick.”I find him to be very rational; you’re not going to lose the polio vaccine. That’s not going to happen,” President-elect Donald Trump said at a press conference on Monday.Trump also addressed concerns about vaccine skepticism.”We’re going to look into finding why is the autism rate so much higher than it was 20, 25, 30 years ago,” Trump said.A transition spokeswoman for Kennedy said, “Mr. Kennedy believes the polio vaccine should be available to the public …