[Campion]

Question is...would it hurt the US to elect the first non-Orthodox Christian ever to the Oval Office?

You're 200 years too late for that. Thomas Jefferson was never any thing like an "orthodox Christian". Whether he was a Christian at all is at best debatable.

[Siena Dreaming]

The deists did have their issues with Christ, but for the most part they continued to attend orthodox churches.

As far as I know, Jefferson retained his membership in the Church of England.