WASHINGTON (AP) — Black conservative talk show host Armstrong Williams has never voted for a Democrat for president. That could change this year with Barack Obama as the Democratic Party's nominee. "I don't necessarily like his policies; I don't like much that he advocates, but for the first time in my life, history thrusts me to really seriously think about it," Williams said. "I can honestly say I have no idea who I'm going to pull that lever for in November. And to me, that's incredible." Just as Obama has touched black Democratic voters, he has engendered conflicting emotions among...