The U.S. isn't setup for more than a two party system. Starting a new party would be a wast of time, no one other than a handful full of local politicians would get elected. The liberal party is your closest bet, That would still be a long shot as our culture is setup on the good old boys mentality. It is easier to influence a smaller group than the whole country. it's all about who you know, younger generations join the groups they best connect with. Friendships are made, and influence is a matter of fact. you are who your friends are. Change takes time and the tea party knows what they are doing. Historically, are major party's have changed ideology considerably.