Ted Cruz

A contested convention may be coming

A presidential convention "is almost as vain and idiotic as a golf tournament." – journalist H. L. Mencken

The Republican Party may be heading for the first contested presidential convention in 40 years. Ted Cruz's win in the recent Wisconsin primary boosted odds that Donald Trump can't win the 1,237 delegates needed to nail down the party's nomination. If history is any guide, look for some political chicanery in the battle to win over delegates to the GOP's July convention in Cleveland.

The first contested convention took place in Harrisburg, Pa., when the Whig Party chose its 1840 nominee. Kentucky Senator Henry Clay led on the first four ballots, but didn't...