Here is a second clip from Jim Garlow's speech at "Convergence 2010" in which he calls for 40 days of nationwide fasting and prayer heading into the midterm elections.
In it, he explains how he knew that fasting and prayer were going to be the key to passing Prop 8 in California, so that is why he personally convinced Lou Engle and The Call to move to the state for six months to focus on it. He explains that for the 40 days leading up to the election, Engle's acolytes fasted and prayed for passage of Prop 8, culminating in The Call rally in San Diego on November 1 where, between 4:20-4:50 they felt that "something had snapped in the Heavenlies" and "we knew God had moved":