The
Commission on Presidential Debates (CPD) began in 1982 by both the Democratic
and Republican parties to establish a way to run presidential debates between
the candidates that are running for President of the United States. The CPD sponsors and produces debates for the
United States presidential and vice presidential candidates and undertakes
research and educational activities relating to the debates. The organization,
which is a nonprofit corporation controlled by the Democratic and Republican
parties, has run each of the presidential debates held since 1988.
Source: http://www.debates.org/