The Democratic Senatorial Campaign Committee on Wednesday said it has asked stations to set aside $650,000 in ad time. A committee official shared the plan with The Associated Press on the condition of anonymity because he was not authorized to discuss media strategy.
Last week the Democratic committee decided to stop spending money on ads in the race. McConnell's campaign said it was a sign that Grimes was faltering. The committee official says that new internal polling shows that undecided voters are breaking Grimes' way.
Recent public polls show a tight race.
The nonpartisan Sunlight Foundation puts total spending in the race stands at $59.3 million.