Is John McCain's presidential campaign finished? Why?

The media seems to think it's because of his pro-Iraq stance. "Tuesday's CBS Evening News and NBC Nightly News blamed Republican presidential candidate John McCain's reduced fundraising and low rank in the polls, which led two top advisers to leave the campaign, on McCain's view that U.S.... show more The media seems to think it's because of his pro-Iraq stance.

"Tuesday's CBS Evening News and NBC Nightly News blamed Republican presidential candidate John McCain's reduced fundraising and low rank in the polls, which led two top advisers to leave the campaign, on McCain's view that U.S. troops must stay in Iraq -- not on how out of step he is with conservatives on the immigration bill he crafted with Ted Kennedy. CBS anchor Katie Couric declared: "No public figure has supported the President's Iraq policy more than Senator John McCain, and he's paid a heavy price for that..."

Is it because of Iraq? Every Republican candidate with the exception of Ron Paul supports the war, or is it because McCain was on the wrong side of the immigration bill?
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