He actually did, he said it was the one regret of his presidency... though he blamed the intelligence and said he still thinks it was the right decision.
But words aside, I think the fact that he has laid low since his presidency show his self-reflection and the fact that he knows he failed.
I could be wrong and I can't believe for the life in me I'm defending GW Bush, but I do think he grossly misjudged the aftermath and body count, he was more of an agent than the decision-maker and that even though he won't openly incriminate himself as a war-criminal by admitting guilt, he has shown a level of remorse.
The whole Bush family is more decent than the Trumps.
Well we're debating who is the bigger piece of crap among 2 giant pieces of crap.
He's the POTUS, the buck stops with him. Cheney and Rumsfeld were monsters and he chose them and supported them. He can regret all he wants, he still lied to Americans and the UN/international community numerous times about intelligence which was totally BS. They lied to our government to try to get us to join the war. He said Saddam had tried to acquire yellowcake from Africa to make nukes, that was BS. Said Saddam had mobile chemical weapons labs, it was BS. He's a liar. He thought they were going to find WMD's even if they didn't have any solid evidence. He bet big and lost, and now he "regrets it".
I don't know that much about his family but he's a piece of crap. Trump is a huge liar obviously, lies far more often. Thing is anyone with half a brain knows Trump is lying and don't trust him because all he does is lie and he doesn't even try to hide it. You have to a MAGA moron to believe him. IMO Bush's lies were more devious, almost everyone believed him, he showed intelligence charts and maps showing WMD sites, he used 9/11 simply as an excuse to push the neocon warmonger agenda. Sociopathic stuff.
I think Bush is a sociopath and Trump is a psychopath.