Conversation so far:
What are Charles Krauthammer's political views?
Krauthammer was a supporter of abortion legalization and opposed to euthanasia. Krauthammer was a longtime advocate of radically higher energy taxes to induce conservation.
Does the article mention Charles Krauthammer's on foreign policy?
The foreign policy, he argued, should be both universal in aspiration and prudent in application, thus combining American idealism and realism.
Could you expand more on Charles Krauthammer's foreign policy views?
Krauthammer's major 2004 monograph on foreign policy, Democratic Realism: An American Foreign Policy for a Unipolar World, was critical of the neoconservative Bush doctrine for being too expansive and utopian.
What else was Charles Krauthammer critical of when it came to foreign policy?
He was critical of the foreign policy realism for being too narrow and immoral; instead, he proposed an alternative he called Democratic Realism.
What is Democratic Realism?
Are there any other interesting aspects about Charles Krauthammer?
In a 2005 speech later published in Commentary magazine, Krauthammer called neoconservatism a governing ideology whose time has come.“
Who did they join?
Who were the original fathers of neoconservatism?
He noted that the original fathers of neoconservatism were former liberals or leftists.“
What did Condoleezza Rice and Richard Cheney do?
Condoleezza Rice, Richard Cheney, and George W. Bush, according to Krauthammer, have given weight to neoconservatism, making it more diverse and, given the newcomers' past experience, more mature.“

Question: How did they make it more mature?
Self-contained rewrite: How did Condoleezza Rice and Richard Cheney make newcomers' past experience more mature?