My parents are very civic minded and they never fail to vote. They will vote for who they think is the best candidate, Dem or Rep.
They would not, however, vote Dem if they thought their goal was to punish the President. I think there are a lot with similar thinking.
If people get the idea that the chief plan of the left is to punish Bush with no plan to protect us, then I do not think the House is in jeopardy.
I wonder if the Democrats remember what happened to Clinton's Job Approval Ratings when the RNC tried to impeach him.