Former Cope spokesman and MP Phillip Dexter has rejoined the ANC, he said on Tuesday.

Dexter, who was a fierce critic of the ruling party during his time with the Congress of the People, said he broke the news to Cope leader Mosiua Lekota on Tuesday morning.

"I had a conversation with Mr Lekota this morning," he said.

"He was very good about it. What he said remains between us, but I can honestly say it wasn't a bad conversation."

Dexter said he was prepared to answer for any criticism he had of the ANC in the past.

"I still think there are challenges and problems in the ANC. But I am prepared to answer for everything I have said in the past."

Cope was formed by former ANC members Mosiuoa Lekota and Mbhazima Shilowa in 2008 in the wake of the resignation of former president Thabo Mbeki during a split in party support for Mbeki and President Jacob Zuma.

Cope has been wracked with infighting between Lekota and Shilowa and their respective factions and has seen its support dwindle after it won around eight percent of the vote in the 2009 national election.