Remember when Rudy told the Saudis to take their $$$$ and shove it?
I miss real leadership.
An easy thing to do, as the Jewish voting block in New York is amongst the largest and also the wealthiest in the city, with many giving him support. Pissing off Muslims in NYC is not as "ballsy" as you may think.
Bloomberg doesn't have to rely on campaign contributions from ANYONE, and has no desire to waste his time "stopping a mosque" as any attempt to do so would be in violation of US civil rights law, unless zoning for the area were changed without the intent being to keep out a mosque. The city already spends millions defending itself from lawsuits every year, and picking a high profile fight like this would only make things worse.