Following Garzón's resignation from the party, Petro proposed a "great national accord to end Colombia's war," based on removing organized crime from power, cleaning up the judicial system, land reform, democratic socialism and a security policy differing considerably from the policies of President Uribe. On 27 September 2009, Gustavo Petro defeated Carlos Gaviria in a primary election as the Alternative Democratic Pole candidate for the 2010 presidential election.[36]