 On May 17, 2013, he announced he would resign from the Assembly at the end of his term in June 2013 and in the fall run for a seat on the New York City Council.This announcement brought further calls from his immediate resignation, including by Assembly Minority leader Brian M. Kolb, and brought a vow by City Council Speaker Christine C. Quinn, a Democrat running for Mayor, that she would work to prevent his election.That afternoon Speaker Silver released a draft resolution to expel Lopez from the Assembly that he said would be voted on when the Assembly returns on May 20, 2013.