President Obama, under your leadership, the economy is all but destroyed, unemployment is at record highs, our civil liberties have been infringed upon by nearly all of your federal agencies (especially the TSA), guns have been shipped to drug cartels, an unconstitutional healthcare reform has been passed, and instead of ending wars you've started new ones.
If there were people that truly believed in the change you had promised, their hopes have been crushed. It is not enough to say that these problems were inherited from the previous administration, and that you need more time. The situation has gotten worse, not better, and no one can be blamed for that but you and your administration.
Please resign, or in the alternative, "opt out" of a second term by failing to seek re-election.