AUGUST 8, 2006 - Posted at 7:41 a.m. CDT
JEFFERSON CITY, MO - Missouri voters are choosing their party's candidates today for 180 state legislative races.
The entire state House and half of the Senate seats are on the ballot this fall.
Today's contest determines which Republicans and Democrats move on to face one another in November.
Voters are choosing nominees for several open Senate and House seats. A couple of dozen incumbents face opposition from within their party.
But many areas lack suspense.
Three Senate and 40 House candidates have no major-party opposition. Another 18 House seats are being determined by the primary.
Republicans today hold a 23-to-11 edge in the Senate, and they control the House by a 95-to-66 margin, with two vacancies.