Mitt Romney, the Republicans, and the number of wives they have (had)

Last week's edition of The Economist had a chart that compared the number of times leading and likely Republican presidential candidates have been married, including the Mormon candidate Mitt Romney.

The tongue-in-cheek chart, titled "Who's the true monogamist?", played the (sort-of) bygone practice of polygamy in Romney's Mormonism against the family-values record of other high-profile Republicans.

The chart went something like this:

Newt Gingrich: Three wives so far

Rudy Giuliani: Three wives so far

John McCain: Two wives so far

Fred Thompson: Two wives so far

Mitt Romney: one wife so far