The powerful speaker of the New York State Assembly, Sheldon Silver, was arrested on federal corruption charges on Thursday, sending shock waves through the political establishment and upending the new legislative session.
Mr. Silver, a Democrat from the Lower East Side of Manhattan who has served as speaker for more than two decades, surrendered to F.B.I. agents early Thursday morning in Lower Manhattan, law enforcement officials said.
Mr. Silver, before entering 26 Federal Plaza, said, “I hope I’ll be vindicated.”
The investigation of Mr. Silver began after Gov. Andrew M. Cuomo in March abruptly shut down an anticorruption commission he had created in 2013.
The federal inquiry, led by the United States Attorney for the Southern District, focused on payments that Mr. Silver received from a small law firm that specializes in seeking reductions of New York City real estate taxes.
While it is legal for lawmakers to hold outside jobs, investigators said Mr. Silver failed to list the payments from the firm, Goldberg & Iryami, on his annual financial disclosure filings with the state.