When he left office, Truman's presidency was criticized, though critical reassessment of his tenure has been favorable. Vice President Henry Wallace was popular among Democratic voters, but he was viewed as too far to the left and too friendly to labor for some of Roosevelt's advisers. Outgoing Democratic National Committee chairman Frank C. Walker, incoming chairman Hannegan, party treasurer Edwin W. Pauley, Bronx party boss Ed Flynn, Chicago Mayor Edward Joseph Kelly, and lobbyist George E. Allen all wanted to keep Wallace off the ticket. Roosevelt told party leaders that he would accept either Truman or Supreme Court Justice William O. Douglas. On November 1, 1950, Puerto Rican nationalists Griselio Torresola and Oscar Collazo attempted to assassinate Truman at Blair House. Before he died, the officer shot and killed Torresola.