on a charity board with Ayers several years ago and has denounced his radical views and activities. The Republican campaign, falling behind Obama in polls, plans to make attacks on Obama's character a centerpiece of presidential candidate John McCain's message with a month remaining before Election Day. Palin told a group of donors at a private airport, "Our opponent ... is someone who sees America, it seems, as being so imperfect, imperfect enough, that he's palling around with ...