(CNN) - President Barack Obama's campaign is making a significant television buy in the key battleground state of Florida, a senior campaign official confirmed to CNN on Wednesday.
The campaign claims it is the largest and earliest general election presidential advertising buy in Miami.
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The buy will include ten media markets including the state's large cities: Jacksonville, Miami, Orlando, Tallahassee, Tampa, the source said.
The buy was first reported by NBC News.
In an August buy, the Obama campaign booked $4.7 million of ad time in the Sunshine State between September 4th and October 2nd, a Republican ad buying source told CNN.
Florida, with 29 electoral votes, is the largest toss up state on the CNN Electoral Map. In 2008, Obama won the state, but by only 236,000 votes of over 8.3 million ballots cast.
Obama has made 22 trips to Florida since announcing his releection bid, and Romney has made 19 visits this cycle.
– CNN's Paul Steinhauser, Kevin Bohn, and Gregory Wallace contributed to this report