Democratic Sen. Christopher J. Dodd could get another Republican challenger on Tuesday. Republican state Sen. Sam Caligiuri will be making “an important announcement about his future plans with regards to the 2010 United States Senate race,” he notified reporters in a release sent out Monday morning.

The announcement will take place at 10 a.m. Tuesday in front of Caligiuri’s home in Waterbury, Conn.

Dodd has already attracted one challenger, former Rep. Rob Simmons, who announced March 15 that he would take on the the suddenly vulnerable six-term senator. Dodd’s popularity at home has plummeted since last summer, thanks to a series of scandals related to real estate deals and his ties to the financial industry.