Conservative Ramesh Ponnuru believes that former President Donald Trump made a policy blunder recently that has garnered little attention but that he believes could come back to hurt him. Writing in the Washington Post, Ponnuru takes aim at Trump’s recent declaration that he would cut off funds to schools that mandated vaccinations for students. In the first place, he writes, vaccine mandates have been in existence for decades now and they have been massively beneficial to the public health of children. Want more breaking political news? Click for the latest headlines at Raw Story. “Changes [t…