Donald Trump’s pledge to take drinking water advice from Robert F. Kennedy Jr. — an anti-vaccine conspiracy theorist known for bizarre theories and stories — has political experts wondering what the former president is doing and health experts hoping it won’t work, according to a new report. Trump’s comment last week that it sounded “okay” to heed Kennedy’s calls to remove fluoride from tap water represents a rejection of political norms when it comes to closing out a presidential race, according to the Washington Post. “Usually at the end of a long campaign, you try to close with a unifying, …