Major Democratic groups off the air in Kentucky Senate race

National Democrats are off the air in Kentucky, where polls continue to show Senate Minority Leader Mitch McConnell with a slight edge over Democratic challenger Alison Lundergan Grimes.

Neither the Democratic Senatorial Campaign Committee nor Senate Majority PAC, the super PAC connected to Majority Leader Harry Reid, D-Nev., have reserved television time in Kentucky for the period beginning Tuesday and running through Election Day, according to data on political advertising shared by media buying sources.