Tennesseans have given more than $1 million to announced presidential candidates.

That's according to disclosure reports reviewed by the Center for Responsive Politics that have been filed through July 15th.

The documents show that Republican Mitt Romney, former governor of Massachusetts, leads in disclosed contributions from Tennessee with more than 380-thousand dollars.

Some officials say the one-million-dollar figure is likely to more than double once unannounced candidate Fred Thompson files a campaign finance disclosure.

Thompson has not yet been required to file, though he has been raising money.

His campaign spokesman has refused to give any figures, but some Republicans say Thompson reportedly collected around $700,000 at one Nashville fundraiser earlier this month.