About 3.5 years ago I wrote a post advising members of the Tea Party movement not to let the movement get hijacked by a political party or other interest groups. It was good advice then and it's good advice now.
I have no problem with a diverse group of people supporting the Tea Party idea. It works because the Tea Party movement is essentially about limited government on a sane and set budget. It's about the immorality of leaving future generations with overbearing debt and an overbearing government. But, that's it. These are ideas that people of all faiths, ethnic groups, genders, sexual orientation, shoe size and eye color can get behind. That doesn't mean they agree on everything, or anything else, but that's what the Tea Party is about.
I think it is important that it stay that way. The big advantage of limited government accountable to the people is that, while it may from time to time impose and execute bad ideas, the damage is limited and temporary. It's a system that allows for mistakes because it mitigates their consequences. It enables the field testing of ideas and agendas without having to bet the farm on them.
Narrowing the scope of people who can get on board a movement to limit the power and cost of government by attaching more agenda items, or entire religions to it would be counter-productive and could lead to the end of the Tea Party as a powerful lobbying force.
I'm glad that evangelicals support limited government and fiscal sanity, but we're not going to get there by expecting all others who believe in limited government and fiscal sanity to also embrace the same religious convictions.