Businessman Dick Green (R) has officially entered the race to replace Rep. Mark Kirk (R-Ill.). Kirk is stepping down in 2010 to run for Senate, leaving his competitive suburban Chicago seat up for grabs.“It is time to say enough’ to out-of-touch career politicians and to send people to Washington that will work to revive our economy and to bring good, long-term jobs to the families of the 10th district of Illinois,— Green said in his announcement speech Thursday.State Rep. Beth Coulson already announced her candidacy for the seat, and local party activists believe she will be the most liberal Republican in the field — which could make her the strongest GOP nominee in the general election. Several other candidates, including businessman Bob Dold and attorney Bill Cadigan, are expected to run for the Republican nomination.Green, who is in a position to fund some of his own campaign for the seat, has also been an activist in the North Shore GOP and is currently a deputy Republican Committeeman for his township. He owns Briefing.com, a Chicago-based company that provides market analysis.Officials at the Democratic Congressional Campaign Committee have indicated that they plan to target the race in 2010. The district gave President Barack Obama 61 percent of the vote in the 2008 White House election, while at the same time re-electing Kirk with 53 percent.The Democrats’ 2006 and 2008 nominee, marketing executive Dan Seals, state Rep. Julie Hamos and attorney Elliot Richardson are running for the Democratic nomination.