Understanding the separation of powers doctrine. The separation of powers at the founding / Keith E. Whittington. The separation of powers in the modern context / Katy J. Harriger -- Core functions of the branches. The lawmaking power / Richard A. Baker. The evolution of presidential power / William E. Leuchtenburg. The law and politics of judicial review / Mark A. Graber -- Boundary struggles between the branches. The power to make war / Nancy Kassop. Emergency powers / Harold C. Relyea. Understanding the impeachment power : lessons from the Clinton case / Michael J. Gerhardt. The debate about the delegation of lawmaking power to the Executive Branch / Thomas O. Sargentich. Congressional power vis--̉vis the states : the context and consequences of the U.S. Supreme Court's decisions / John Dinan. Executive privilege and congressional and independent investigations / Neal Devins. The Supreme Court and constitutional dialogue / Louis Fisher.