A new Gallup Poll finds a "sizable proportion" of Democrats would vote for Sen. John McCain next November if their favored candidates does not win the Democratic nomination.
"Clinton supporters appear to be somewhat more reactive than Obama supporters. Twenty-eight percent of the former indicate that if Clinton is not the nominee -- and Obama is -- they would support McCain. That compares to 19% of Obama supporters who would support McCain if Obama is not the nominee -- and Clinton is."