A lame-duck session of Congress in the United States occurs whenever one Congress meets after its successor is elected, but before the successor's term begins. The expression is now used not only for a special session called after a sine die adjournment, but also for any portion of a regular session that falls after an election. In current practice, any meeting of Congress after election day, but before the next Congress convenes the following January, is a lame-duck session. Prior to 1933, when the 20th Amendment changed the dates of the congressional term, the last regular session of Congress was always a lame duck session.