ANC Chief Whip, Jackson Mthembu, says that the ruling party's parliamentary caucus admits it has made mistakes over the last five years.
Mthembu made the comments while addressing the press.
He also apologised for some the caucus's decisions which violated the law, including their embrace of a report which found Jacob Zuma not liable to pay for the security ugrades at his Nkandla homestead.
Mthembu said these decisions were not lawful and that the ANC should have opposed them.
He stressed that the party was trying to preserve its integrity and would no longer support unconstitutional proposals.
This follows Cyril Ramaphosa's address to the caucus, where he praised them for holding the executive branch accountable.
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