CNN's Wolf Blizer took a key Obama supporter to task on Wednesday over Vice President Biden's use of an anonymous quote to slam Mitt Romney. The Romney campaign had denied saying the racially-charged remark.

"[W]hy would a sitting vice president issue this condemnation of Mitt Romney and his campaign based on a British newspaper with some anonymous quote?" Blitzer asked on Wednesday's The Situation Room.

Other CNN reporters did not share Blitzer's skepticism, though, as five stories on the matter aired on Wednesday evening and Thursday morning with none of them challenging the appropriateness of Biden's remark. The story aired even though correspondent Jim Acosta admitted that the source for the alleged Romney adviser quote could not be independently confirmed.