I'm not so sure. It might be spun as a failure of the "hawkish" approach. They already have a history of changing election outcomes with attacks just before elections. They did it in Spain and it worked. They did it in London and it worked. They may well think it will work here too. They have a track record of doing what they've done before. It's also not so much about what will actually happen after an attack, but what they ~think~ will happen afterward.
Agreed.