HMM: Houston Mayoral Runoff: Why It Might Matter to the Rest of the Country. “Houston is the fourth, or possibly third, largest city in the U.S., depending on how one counts, and one of two poised to assume the role of the U.S.’s most significant urban area. . . . Kevin Williamson recently wrote the article ‘Republicans Must Save the Cities,’ in which he noted that no city larger than San Diego has a Republican mayor. Tonight, if you hear that Bill King won Houston’s runoff mayoral election, then we will see what Republican fiscal leadership in a major U.S. city can do today.”