democrats are usually more condensed into fewer states. There are more red states, but more democrats. Blue states have more people, but electoral college isn't exactly based on the population. Lets say if in state a, 95% voted for Clinton, in state b, 40 percent, and in state c, 48 percent. Trump still won 2 of those states. Electoral college votes in almost every state are winner takes all. Hope that helps :D