Florida Democratic Rep. Corrine Brown has yet to officially form a campaign for the open Senate seat but she’s got a supporter in colleague Donna Edwards of Maryland.

Edwards’ leadership PAC, Leadership That Listens, reported a $1,000 donation to “Corrine Brown for U.S. Senate” in June. Brown has been gauging support as she mulls a primary challenge to Democratic Rep. Kendrick B. Meek, the top Democratic candidate in the 2010 race.

Edwards, Meek, and Brown are all members of the Congressional Black Caucus — whose members may be pressed to choose sides if Brown and Meek run for the same office. But it hasn’t split Edwards’ support. Her leadership PAC donated $250 to Meek’s Senate campaign on the same day the donation to Brown was made.