Likely Because George H W Bush wanted to run for President and he hadn’t yet figured out how he was going to obfuscate the fact that he had been a vocal and powerful voice in favor of the policy and he would eventually allow the blame to fall on the people he had convinced to join him.(*) Bush would say he was “out of the loop” or literally out of the room when it was discussed, due to drinking too much ice tea that day.
The Tower Commission (John Tower) would find George H W Bush innocent of all involvement in Iran-Contra. Senator Tower would be offered the Secretary of Defense job in the Bush administration but would fail to be confirmed by his colleges in the senate, after several military women came forward and detailed several drunken gropings by the senator while chairman of the armed forces committee and visiting military bases.
(*) This sentiment that Bush had been an early supporter and had convinced others to join him were also given in the book "Destiny and Power".
Bush would go on as President to pardon 6 Iran-Contra decision makers on Christmas Eve, who by all rights could have included himself.
- Elliott Abrams, a former assistant secretary of state for Central America
- National Security Adviser Robert McFarlane.
- CIA official Duane Clarridge.
- CIA official Alan Fiers.
- CIA official Clair George
- former Secretary of Defense Caspar Weinberger.
LA Times Headline
Bush Pardons Weinberger, 5 Others in Iran-Contra; Act Called Cover-Up : Inquiry: Prosecutor accuses President of misconduct, claims Bush kept own notes of arms-for-hostages affair. Christmas Eve clemency scuttles six-year investigation.