Send in the Election Clowns Don't worry, they're here BY TIM FLECK tim.fleck@houstonpress.com What a difference a couple of years make. In the Houston Press Best of Houston issue in 2001, Houston's District H councilman Gabe Vasquez received Best Politician honors. Last week, he missed the runoff in the race for city controller after earlier deciding not to seek re-election to his City Council seat. Come January, Vasquez will be busted back to private citizenship. In an informal Insider poll of the biggest blunders of the 2003 local election, media members and politicos named Vasquez's ballot switcheroo as No. 1....