Bill Clinton explains the difficulties that America faces in order to convince the listener of what?

The answer is: Americans need to work together to renew the country.

Bill Clinton believed that in order to get out of the current economic problem, He need to make American people realized the situation that they're in and accept it regardless of how difficult it is.

After accepting the problem, he believed people can start to develop the will to make the efforts to deal with the problem and depended on each other to renew the country.