where does the constitution discuss lame duck sessions
Lame-duck session The possibility of a lame-duck session of Congress in the modern sense began in 1935, when the 20th Amendment to the Constitution took effect. Under this amendment, ratified in 1933, Congress meets in a regular session on January 3 of each year, unless in the previous session it passes a law changing the date. Also, the terms of Members begin and end on January 3 of odd-numbered years. Under these arrangements, any meeting of Congress after election day (in November of even-numbered years), but before the following January 3, is a lame duck session.