Senator Rand Paul has joined many of his fellow Republicans in doubting the accuracy of polls in this year's presidential race.
In recent weeks, President Barack Obama has seen his lead widen significantly in two battleground states that border Kentucky: Ohio and Virginia. Obama's lead is also widening in national polls and in other battleground states.
Six congressional incumbents defeated their challengers in Tennessee's primary election. Republican Representatives Chuck Fleischmann and Diane Black won their races, following some of the state's toughest campaigns. The other winners were Republican Representatives Jimmy Duncan in the 2nd District, Stephen Fincher and Timothy Dixon in the 8th District and Scott DesJarla is in the 4th District. Democratic Representative Steve Cohen prevailed in the 9th District.