The U.S. presidency in crisis: a comparative perspective

Putting the U.S. presidency in a wider context

Reagan, Bush, and the emergence of the gridlocked system

Bill Clinton encounters the governability gap

Thatcher, Major, and the problem with leaders as icons

Trudeau, Mulroney, Chrétien, and the rise and fall of personalized leadership

Hawke, Keating, and a balance between personal and institutional leadership

Toward a rehabilitation of U.S. executive leadership.