Rep. Alexandria Ocasio-Cortez is resorting to “baseless hysteria” to score campaign donations from her far-left voting base by accusing President Trump and other Republicans of killing kids by refusing to meet Democrats’ health-care demands, a White House rep told The Post Saturday.  “If AOC really cared about America’s kids, she would stop drumming up baseless hysteria and tell her fellow Democrats to re-open the federal government and restore confidence for the millions of children who rely