focus on level 3s in the biggest states in the beginning, and try to not waste a single point of stamina (build capital, move operatives, VP, etc. to use it well). A social security TV ad early on in FL also helps. When I play against the computer, I build up level 3s in big states (15+ EV), and sprinkle a few level 1s around medium sized states until around week 30-32. Then I go to a fairly large state that I am behind in, blast them with TV ads, and come back both in that state and nationally. Also, don't forget about endorsements. Foreign Policy is the most important, followed by unions or CoB. I usually get around half of them (most of the dem ones, and NFPC and CoB). This strategy seems to work reliably for me against the computer (I used it to beat Nixon with McGovern on Masochistic).