They're Republicans, Dave. It's not supposed to make sense.
Dave Barry on the Repug convention:
You may be wondering why the Republicans decided to hold their convention in New York.
According to an explanation issued by the GOP site-selection committee: "We considered such factors as hotel space, meeting facilities, transportation and the financial incentives offered by the city. Then we smoked crack."
That's the only way it makes sense. Because if you're looking for cities that would be appropriate hosts for a large national gathering of Republicans, New York is going to be pretty far down your list, somewhere below Havana.