(CNN)On Monday night in Philadelphia, John McCain offered a total and complete rejection of the world view offered by the leader of his party.

Here’s the key paragraph:

“To fear the world we have organized and led for three-quarters of a century, to abandon the ideals we have advanced around the globe, to refuse the obligations of international leadership and our duty to remain ‘the last best hope of earth’ for the sake of some half-baked, spurious nationalism cooked up by people who would rather find scapegoats than solve problems is as unpatriotic as an attachment to any other tired dogma of the past that Americans consigned to the ash heap of history.”

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Those would be harsh words coming from any politician about the president of the United States. They are remarkable when you consider that McCain and President Trump are, ostensibly, part of the same Republican party.