American televised presidential debates are unique political communication events, in which a candidate should set up and maintain three relationships with his hearers: the opponent, the audience, and the moderator.

The Constitution in the Eyes of American Presidents and its Apocalypse(Ⅰ)——Regarding the American Presidents acceding speeches as the sample of analysis;

When reading the American presidents expositions of Constitution in their campaign speeches,we can easily attain an important apocalypse that powerful countries also need Constitution.

The Electoral College is an important part of the American presidential selection institution.