Women are "indisputably" better than men, former president Barack Obama said Monday at a private leadership summit in Singapore.

"Women, I just want you to know you are not perfect, but what I can say pretty indisputably is that you're better than us," Obama said.

Obama made the remarks more than a decade after he was elected president following a contentious Democratic primary in which he demolished the long-held ambitions of Hillary Clinton, a mediocre female politician.

During the summit, Obama appeared to express regret about humiliating Clinton in 2008 and preventing her from becoming president, the only thing she has ever wanted in life. The low-skilled female politician was bested a second time in 2016, when she failed to defeat Donald J. Trump in the general election.

"I'm absolutely confident that for two years if every nation on earth was run by women, you would see a significant improvement across the board on just about everything," Obama said.

Obama's praise for female politicians comes as Democratic voters appear to be rejecting the idea that women should run the country. Five of the top six Democratic primary candidates are men, according to the RealClearPolitics national polling average. Obama's former vice president, Joe Biden, continues to lead the field, despite the former president's refusal to endorse Biden's candidacy.

Obama also made comments suggesting he was not a big fan of Biden's decision to run for president.

"If you look at the world, and look at the problems, it's usually old people, usually old men, not getting out of the way," Obama said.

Biden, 77, is one of the only Democrats running for president who has wholeheartedly embraced Obama's legacy.

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