Question for New Yorkers

I am confused by the responses to the extent they pertain to Mike Bloomberg. Bloomberg is a Democrat. He changed to the Republican party because it was an easy way for him to get into the election without having to wage a primary battle against politicians entrenched in the well-established democratic political machine. His politics, while not as left as, say, Mark Green, clearly leans more toward what the average northeasterner considers "liberal" or "Democrat". The republicans were happy to have him, as he was their only chance at a victory. There are few if any true Republican politicians in NYC that could have any shot at making a mayoral election competitive, Rudy Giuliani aside. He was elected the first time because he had boatloads more money to spend than everyone else put together. He has done a credible job and probably will be re-elected.