I've used the Yoyo tip. Lot of negative campaign against Bush, 3th week before the end of the campaign I've launched anti-bush ad in the States where I'm loosing, after the polling I've launched the second ad (Pro kerry ad) in the States I'm loosing, and finally in the last week I've launched the last ad (anti Bush) in the States I'm loosing.
When I use this kind of tactic, I have exellent results.
P.S. I always brainstrom in States where I'm loosing.
P.S. 2 I always make ads related with my strategy