PHILADELPHIA — Gov. Terry McAuliffe fueled new distrust of Hillary Clinton among liberal Democrats this week with a declaration that the presidential nominee was likely to reverse her position on the Trans-Pacific Partnership after the election.The Clinton campaign swiftly rejected the idea that she would waver on TPP and called her longtime friend and chairman of her 2008 campaign “flat wrong.” But Republican nominee Donald Trump seized the moment, saying that McAuliffe revealed Clinton’s true nature as a free trader — and a flip-flopper whom voters shouldn’t trust.