Alan Greenblatt is a GOVERNING correspondent.
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Joshua Green gets the rundown on the mechanics of replacing Palin -- should McCain decide to go that route -- following her formal nomination tonight.
In essence, a majority of the members of the Republican National Committee (made up of one man and one woman from each state, plus each state's party chair, along with some representatives from the territories) would have to ratify McCain's new pick. This would be largely a formality, according to leading GOP lawyer Ben Ginsberg.
But Green's piece may be most useful as a primer for people who may have heard of Thomas Eagleton in recent days but haven't boned up on their 1972 campaign history lately.

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