Sheldon Silver, the longtime speaker of the New York State Assembly, agreed on Sunday to relinquish his duties on a temporary basis as he fights federal corruption charges.
His decision came amid mounting pressure from his fellow Democrats in the Assembly, who worried that the criminal charges would impair his ability to carry out the duties of one of the most powerful positions in the state’s government.
In an unusual arrangement, Mr. Silver would not quit his post. Instead, he would temporarily delegate his duties as speaker to a group of senior Assembly members.
Under the tentative plan developed on Sunday, the Assembly majority leader, Joseph D. Morelle of the Rochester area, and the chairman of the powerful Ways and Means Committee, Herman D. Farrell Jr., Democrat of Manhattan, would assume responsibility for budget negotiations.
Three other senior Democratic members — Carl E. Heastie of the Bronx, Catherine T. Nolan of Queens and Joseph R. Lentol of Brooklyn — will round out the leadership team.