New Poll Shows Perry Falling, Cain Gaining: Political Buzz 10.4
Description:A new ABC News/Washington Post Poll has Mitt Romney holding a big lead, Rick Perry falling away and Herman Cain gaining ground. But it's a national poll of Republican primary voters and that's not how nominees are selected. Just ask the two candidates atop the polls in late 2007 -- Rudy Giuliani and Fred Thompson.(1:08)