The number likely keeps Carnahan ahead of likely Republican opponent Roy Blunt in the money race after half a year of fundraising, but it's still unclear who won the second round.
The Blunt campaign has said it has raised more than $1 million dollars over the past three months -- and will announce its exact total on TWITTER.
This source tells The Notebook that Carnahan will likely reveal her full fundraising numbers later Tuesday.
UPDATE 10:48 AM: Carnahan Sends E-mail Confirming $1M Haul:
"For far too long, entrenched Washington insiders had been in charge of our country - putting special interests before the interests of the voters. By supporting wasteful pork barrel spending while letting Wall Street go hog wild, these Washington insiders dug our country into a hole that's going to take years to dig out of. But I am full of hope; because I know that with independent voices, fresh ideas and common sense we can make our country as strong as ever," Carnahan wrote in an e-mail to supporters.
"I'm running for US Senate because I want to be a part of the change to restore fiscal responsibility, create jobs and revitalize the economy, and tackle important issues like health care and energy independence. It won't be easy, but the support our campaign has generated over the last two quarters is a sign that folks are tired of the old ways of Washington and ready for positive solutions towards achieving those goals," she said.
*2nd Quarter fundraising reports are due with the FEC by Wednesday*