You've heard of follow the money? How about follow the schedule to find out which state is really having the most influence on the process. Hands down it's Iowa. Check out this tally of candidate visits in the state the Iowa Democratic Party has been keeping for the last four weeks:
--The week of July 1 = 74
--The week of July 9 = 85
--The week of July 16 = 49
--The week of July 23 = 83
If a candidate made four stops in one day in Iowa, that counted as "4" in this tally. Still, it shows how busy things are in Iowa.