Kerry's wife was a huge, pompous turn-off. She compares very unfavorably with Laura Bush.
That's why the Dems have apparently turned her into a Stepford Wife for the rest of the campaign after that finger-pointing incident - just like they did with Hillary in 1992 (remember how she suddenly started baking cookies with her daughter?).
We probably won't see the real Teresa Heinz again until after the election. And so long as Kerry loses, we won't have to care.