GOP Assemblywoman Jennifer Beck has decided to run for State Senate against Democratic incumbent Ellen Karcher, setting up one of the premier legislative contests of the 2007 mid-term elections. Beck will give up the Assembly seat she won in 2005 to challenge Karcher, who upset Co-Senate President John Bennett in 2003. Update: Beck says that the announcement of her Senate candidacy is premature. “”I have not yet made a decision or any type of announcement regarding which seat I will be running for in 2007,” she told PoliticsNJ.com. But Senate Republicans say she is running against Karcher.