The races to watch in tomorrow's primaries for General Assembly seats are in Louisville, Northern and Southern Kentucky.In Louisville, four Democrats are vying to replace retiring Democrat Tim Shaughnessy in the 19th district, where no Republicans are running.In the 37th District, former Republican Metro Councilman Doug Hawkins and political activist Chris Thieneman are vying to face state Senator Perry Clark. Republicans have made the seat a priority for the fall.Outside of Louisville, two Republicans—businessman Chris McDaniel and Will Tewort—are hoping to replace Northern Kentucky senator Jack Westwood in the 23rd District. And three are hoping to replace Vernie McGaha from Russell County in the 15th District. Among them are Pastor Mark Polston, Congressman Hal Rogers's staffer Chris Girdler and A.C. Donahue.The last primary to watch is near Bowling Green, with state Senator David Givens in the 9th District. Tea Party favorite Don Butler has been running ads against Givens, who is considered a rising leader in the chamber.