How Powerful Is The Mormon Church?

With high profile members like Mitt Romney amongst them and a popular broadway musical named after their sacred text, who exactly are the Mormons?
Learn More:
Mormonism: When Jesus visited America and other beliefs
http://www.bbc.co.uk/religion/0/20203949
“Mormons believe their church is a restoration of the Church as conceived by Jesus and that the other Christian churches have gone astray.”

Insight: Mormon church made wealthy by donations
http://www.reuters.com/article/2012/0…
“If the Mormon church were a business, wealthy adherents like Mitt Romney would count as its dominant revenue stream.”

Mormons in America – Certain in their beliefs, uncertain of their place in society
http://www.pewforum.org/2012/01/12/mo…
“A major new survey finds a mixed picture: Many Mormons feel they are misunderstood, discriminated against and not accepted by other Americans as part of mainstream society. Yet, at the same time, a majority of Mormons think that acceptance of Mormonism is rising.”

11 surprising things you didn’t know about mormons
http://www.businessinsider.com/11-sur…