His environmentalism is proof:

Self-proclaimed conservative purists attack McCain for his vote to block drilling in the Alaskan National Wildlife Refuge. It was for this affront that Romney labeled McCain as being outside the conservative mainstream. Once again, it was McCain who was true to conservative principles and Romney who was off-base. Barry Goldwater, the founder of the modern conservative movement, devoted an entire lengthy chapter in his book "The Conscience of a Majority" to "Saving the Earth". Russell Kirk, one of conservatism's leading scholars, wrote: "the modern spectacle of vanished forests and eroded lands . . . is evidence of what an age without veneration does to itself and its successors."

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