twentieth amendment
Twentieth Amendment. The constitutional amendment, ratified in 1933, that changed the date of the presidential and vice-presidential inaugurations from March 4 to January 20, and the date for congressional convention from March 4 to January 3, thereby eliminating the short session of Congress, during which a number of members sat who had not been reelected to office. — Also termed lame-duck amendment. [Cases: United States 26. C.J.S. United States §§ 45–47.]