† Connecticut's filing deadline is fourteen days after state party conventions are held. The Democratic convention was held on May 10, 2008. The Connecticut Republican Party did not hold a statewide convention this year, but did hold individual congressional district conventions, also on May 10, 2008.
‡ Minnesota Democrats held individual congressional district conventions throughout April and May and held a state convention June 6-8, 2008. Traditionally, the party endorses candidates at these conventions. These endorsees become all-but-official nominees, usually rendering the primary a mere formality.
§ The Virginia Republican Party chose to nominate its Senate candidate via convention rather than via primary election.
* Due to Hurricane Gustav, Louisiana moved its primary from Sept. 6, 2008 to Oct. 4, 2008. Run-offs for LA-02 and LA-04 will be held on Nov. 4th and the general election for those races will be held on Dec. 6th. All other races will conduct normal general elections on Nov. 4th.
