Don't be so sure. She got booted once before in a primary, and this July Hank Johnson (a commissioner) is trying to take her out.
http://www.hankjohnsonforcongress.com/about.html#
Denise Majette, who ousted McKinney for one 2-year cycle, only made it because a lot of Republicans worked for her campaign and got a lot of Republicans to vote in the Dem primary that year (we have open primaries in GA). It didn't hurt that there were no really significant Republican primaries in that election cycle.
Denise then turned around and abandoned that seat to run for the Senate two years later. This campaign was the definition of "a snowball's chance in Hell." There was just no way she was ever going to win a statewide race. We still can't figure out WTH she was thinking. Cyndy of course took the House seat back.
Hank Johnson is unlikely to get the crossover support Majette did. We did it, we got burned by Majette's idiocy/hubris/whatever in walking away from the seat, and we aren't likely to do it again; I know I won't.
As a result, Hank will have to run one heckuva campaign to overcome Cyndy's entrenched machine.
Happened in '02 because there were no significant GOP primary races so a lot of republicans crossed over and voted against her in the democratic primary.
In '04 with the presidential primary and all, she came back and won solidly.
Things lined up just right and republicans crossed over to get rid of her, Probably cant happen again. Actually it shouldnt. The voters of her Ga. District deserve this POS.