If you haven’t already yet, check out Jo Mannies’ column today from the Democratic Convention, in which she unearths a gold nugget of City Hall news from Denver.

St. Louis License Collector Mike McMillan, seen perhaps as the most viable African-American potential opponent to Mayor Francis Slay, told Mannies that he is not running.

“I am very pleased to continue the work I’m doing as license collector,” McMillan said. “I am not running for mayor in this election cycle.”

“….in this election cycle.”

Interesting.

McMillan is in Denver as a delegate for Barack Obama; Slay is a delegate for Hillary Clinton.

The pair, Mannies reports exclusively, met for 45-minutes Wednesday in the atrium of the Missouri convention hotel.

Many at 1200 Market considered McMillan — an adept fundraiser who’s already run citywide — as the strongest possible contender for Slay in the March 2009 Democratic primary.

His decision leaves Circuit Court Clerk Mariano V. Favazza as one of the few serious candidate left.