Republican tensions grew Thursday as Tea Party-aligned senators rejected a bid to speed up the vote on a bill to fund the government while defunding ObamaCare, with one senior lawmaker accusing his colleagues of posturing -- as the chances of a government shutdown increased. The flurry of activity occurred late Thursday afternoon on the Senate floor. With lawmakers facing a Sept. 30 deadline to pass a spending bill, Senate Majority Leader Harry Reid tried to get approval to hold key votes on Thursday, in order to give the House more time to consider the legislation. But Sen. Mike Lee, R-Utah,...