There is no way Don Siegelman won whites in 1998.
Then it would be 1982 with George Wallace
that's true but if you look at the areas he won, a lot of it is very white
Possibly not. Wallace got over 90% of the black vote according to Wikipedia.
Whites in Lilly white counties stayed more loyally democratic then white counties where there were was a significant minority/majority of blacks. A lot of this has to do with those counties being detached form the politics of segregation and slavery- whites in those counties didn't think about blacks so republican race-baiting/racial conservatism was less effective. Those counties swung heavily to McCain when the Democratic Party brought race to the forefront, and voters there finally couldn't ignore race.