What are the roles of the three branches of government in policy analysis? what are the roles of the judiciary,legislature and the executive in policy...

I
disagree with post #1. Beginning with President Washington every Presidential Administration
(Executive Branch) has had a 'policy agenda'. Constitutional Framers Alexander Hamilton, James
Madison, and John Jay understood that the executive policies of the president weild power and
that power must be kept in check. Several essays in The Federalist
Papers discuss how the policies of the Executive Branch can be 'checked' and analyzed
by the Legislative and Judicial  Branches of government. I've listed two examples from U.S.
history that show how the Executive branch is subject to review from the other branches of
government.

1. President Wilson promoted his foreign policy agenda for a
League of Nations, the Legislative Branch rejected it.

2. F.D.R. tried to
push his policy to have the Legislative Branch alter the composition of the Supreme Court so
that some of his New Deal policies would not be overturned by the court. The Legislative Branch
defeated his proposal.

3. Currently, the president's healthcare policy which
was passed by the Legislative Branch is being argued in the Supreme Court regarding its
constitutionality.