This bill from Jose E. Serrano [D-NY-15] (Introduced 01/04/2013) needs no explanation.
“H.J.Res.15 – Proposing an amendment to the Constitution of the United States to repeal the twenty-second article of amendment, thereby removing the limitation on the number of terms an individual may serve as President.”
http://beta.congress.gov/bill/113th-congress/house-joint-resolution/15/text