Phil Bredesen will probably be the last Democratic governor there for a long time.
Probably - yes. A number of states moved rather strongly Republican in 2008-2010 period, and it's one of them.
You can blame Obama for that because Dems will never get Governorships like TN ever again in our lifetime.
Sad.
In some areas - probably. Acadiana, for example, was pro-Lyndon Johnson, not Barry Goldwater, in 1964 (besides New Orleans - almost only area of Louisiana to do so), and, with few exceptions, voted for Clinton in 1992 and 1996. It even voted mostly Democratic for state legislature in 2007 (some Democrats are still finishing their last term there). But after 2008 it moved heavily Republican, and most of it votes 65-80% Republican now. Somewhat similar processes - in Kentucky, West Virginia, Arkansas, slightly later - Missouri and Indiana...