So far in 2014, only three incumbents running for re-election in the Congress have been bounced out by the voters, and there is little reason to think voters will stray from their current roster of House and Senate members in primaries on Tuesday in Connecticut, Minnesota and Wisconsin.

A quick review of races in the Nutmeg, North Star and Badger states show how little change is expected today for the Congress:

+ Of the five incumbent House members running for re-election in Connecticut, none have a primary opponent.

+ Of the seven incumbent House members running for re-election in Minnesota, none have primary opposition.

+ Of the seven incumbent House members seeking re-election in Wisconsin, three have token opposition in their primary elections.

For those scoring at home, that means just three of 19 incumbents in U.S. House races have any opposition on Tuesday - not much of a primary challenge.

Tennessee race remains in limbo

A week ago, voters in the 4th District of Tennessee gave Rep. Scott DesJarlais (R-TN) a primary win by just 35 votes over challenger Jim Tracy - and as of now - nothing is official as yet.

Still to be counted are some provisional ballots that were cast on primary day.

With such a close margin of victory, a recount would seem to be a formality, which may mean it will take a few weeks to sort out the winner.