Question

In Marbury v. Madison, the Supreme Court established the principle of constitutional review by? I am seconding guessing myself on my answer so can you point me the right direction is it:

claiming that Section 13 of the 1789 Judiciary Act providing that the Supreme Court will issue a writ of mandamus was unconstitutional.

or

lecturing the Jeffersonians on why Marbury was rightfully entitled to his appointment.

Answer 1

I think your first answer is correct.

http://en.wikipedia.org/wiki/Marbury_v._Madison