A new report flagged what it called a “red flag” for the Trump campaign in a key battleground state that could decide the presidential election. Donald Trump is trailing Kamala Harris in early voting among seniors in Pennsylvania, Politico reported, calling the finding a “warning sign” for him that mirrors data and polling across swing states. The report comes after Republicans won the constituency in each election since 2004. Want more breaking political news? Click for the latest headlines at Raw Story. The report said adults over 65 account for nearly half of early voters in Pennsylvania. R…