 De Klerk had desired a total amnesty for political crimes committed under apartheid and opposed the Truth and Reconciliation Commission set up to investigate past human rights abuses by both pro and anti-apartheid groups.His working relationship with Mandela was strained, although he later spoke fondly of him.In May 1996, after the National Party objected to the new constitution, de Klerk withdrew it from the coalition government; the party disbanded the following year and reformed as the New National Party.