Jacob Lew, U.S. Budget Director under president Clinton and under president Obama, is Obama's chief of staff. He guides the negotiating team for the Democrats in the "fiscal cliff" negotiations with Republicans. Colleagues describe him as thorough and meticulous. He negotiated with Republicans in 2011, running into problems with Republicans and Speaker Boehner, who saw him as inflexible in the negotiations. Lew is a son of Polish immigrants living in Queens, New York, and participated actively in Democratic causes from his student days. This time the lead negotiator is Treasury Secretary Geithner. Lew was an aide to Democratic Speaker Tip O'Neill. In 1983 he helped O'Neill in negotiations for Social Security legislation when Reagan was president. In 1997 he helped negotiate an agreement with Republicans to balance the budget under president Clinton.