PHILADELPHIA (AP) — Facing a backlash from the left, Virginia Sen. Tim Kaine is facing pressure to affirm his liberal credentials in his first prime-time speech as Hillary Clinton's running mate. Kaine, a former Virginia governor, was introduced by Clinton last weekend in Miami, where he switched easily between English and Spanish and spoke of his time as a Catholic missionary in Honduras, his work as a civil rights attorney and an education-focused governor who managed a state through tough times. Addressing his home state delegation Wednesday morning, Kaine called the campaign "a civil rights election," panning Republican Donald Trump for mocking disabled people and using "demeaning and offensive language" about women. Former Maryland Gov.