Maine Senator Olympia Snowe joined other Republicans on the Senate Finance Committee to vote against created a new government health insurance plan to compete with the private market. The final vote was 15-to-8. Five Democrats joined the Republican block. The outcome was expected but is still considered a defeat by those who see government-sponsored insurance for the middle class as a key to President Obama’s health care overhaul. They say it would give consumers more choice and competitions. Opponents say a public option would drive private insurers outof business and amount to a government takeover.