Critz has small lead over Burns

According to this new poll from We Ask America, Democrat Mark Critz leads Republican Tim Burns by 4 points in the District 12 special, with 26% undecided and independents leaning toward the GOP.

The National Journal's Hotline On Call gets into the differences -- and the squabbling -- between two polling firms that have published divergent results on the Senate race lately.

(H/t GrassrootsPa)

-- Timothy McNulty