Senator Claire McCaskill (D-MO) says Hillary Clinton called her, after she endorsed Clinton for president.
The group says this is the first time it has made a gubernatorial endorsement.
Clay is running against Russ Carnahan for the 1st Congressional District.
Missouri Tea Party groups upset with California Tea Party Express.
Comes with a $2,500 campaign contribution.
Kirk said Monday that the former Massachusetts governor knows how to work with Democrats and independents.