Connecticut Republican Sam Caligiuri announced Tuesday that he's decided against a campaign in 2012 for Rep. Chris Murphy's (D-Conn.) House seat. 

The former state senator was the party's nominee to face Murphy in 2010 and came within striking distance of the Democrat on Election Day, making his decision to not run in an open-seat contest in 2012 somewhat surprising. 

"Since the end of the 2010 campaign, I have been overwhelmed by the outpouring of well-wishers and individuals encouraging me to run again in 2012 for Congress in the Fifth District," Caligiuri wrote in a message posted on his Facebook page Tuesday afternoon. "While my commitment to serving the people of Connecticut is stronger than ever, Lori and I have made the decision that I will not run for Congress in 2012. With a young family, I believe that I must find a way to help make a difference in our state from closer to home than serving in Washington at this time would permit."

Caligiuri won a three-way Republican primary last cycle, defeating former Navy officer Justin Bernier and businessman Mark Greenberg. Both Republicans have already jumped into the 2012 race.  

State Sen. Andrew Roraback (R) recently told The Ballot Box that he's also weighing a bid for the seat, arguing that the party needs to pursue a more centrist path if it wants to win the district in 2012. 

Earlier this month, Murphy announced his intention to run for the seat of retiring Sen. Joe Lieberman (D-Conn.) next year.