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John McLaughlin, a national Republican pollster who has worked for many New York candidates, said the state’s changing demographics may have given rise to a new culture of political scandal in the state.

“For years, you had a certain level of middle-class folks who were traditionally ethnic, Catholic and Jewish in New York state. Then you had your share of political corruption, but now you have moral corruption, too,” Mr. McLaughlin said.

But some constituents in Mr. Lee’s district said they didn’t consider his downfall a New York state of mind, rather a consequence of celebrity that can infect politicians from any state.

“People in power do the darnedest things. I really don’t know what they’re thinking,” said Bob Dickinson, 65, in the hamlet of Clarence Center.