Last week John Kelly, the White House chief of staff, tried to defend President Trump against charges that he was grossly insensitive to the widow of a U.S. soldier killed in action. In the process, Kelly accused Frederica Wilson, the member of Congress and friend of the soldier’s family who reported what Trump had said, of having behaved badly previously during the dedication of an F.B.I. building.

Video of the dedication shows, however, that Kelly’s claim was false, and that Representative Wilson’s remarks at the ceremony were entirely appropriate. So Kelly, a former general and a man of honor, admitted his error and apologized profusely.

See? I made a joke!

In reality, of course, Kelly has neither admitted error nor apologized. Instead, the White House declared that it’s unpatriotic to criticize generals — which, aside from being a deeply un-American position, is ludicrous given the many times Donald Trump has done just that.

But we are living in the age of Trumpal infallibility: We are ruled by men who never admit error, never apologize and, crucially, never learn from their mistakes. Needless to say, men who think admitting error makes you look weak just keep making bigger mistakes; delusions of infallibility eventually lead to disaster, and one can only hope that the disasters ahead don’t bring catastrophe for all of us.