Terrorist attacks and the midterm elections

If there was a successful terrorist attack against the US in the weeks leading up to the elections, would this hurt or help the GOP?

Considering they're the party in power, it seems obvious that they would get blamed for it as it happened on their watch.

However I can also see them pointing the finger at democrats limiting their ability by restricting FISA and other orgs.

Any terriorist attack will help the Republican-led GOP. They'll just create scare tactics (WMD hooplah and other lies) just like they did with 9/11 to win votes. It's the only thing keeping them alive. I wouldn't be surprised if something does happen before election day and they'll use fear-mongering to win votes.

http://www.alternet.org/mediaculture/38980/