Yes, she ran against Majette in 2002, who won. Then Majette ran for Senate in '05 and lost. So McKinney is back.
Frankly, the longer she serves in the House and the crazier things she does only embarrasses the Democrats.
If she's defeated, it'll be by another liberal so the vote won't change. Personally, I'd rather see her in Congress.
She makes the Dems look very bad.