Barack Obama argues that his judgement is why he should be elected President. His whole campaign is predicated on a speech that he gave in October of 2002 in which he claims to have demonstrated that judgement. Here's part of that speech:
My grandfather signed up for a war the day after Pearl Harbor was bombed, fought in Patton's army. He saw the dead and dying across the fields of Europe; he heard the stories of fellow troops who first entered Auschwitz and Treblinka. He fought in the name of a larger freedom, part of that arsenal of democracy that triumphed over evil, and he did not fight in vain. I don't oppose all wars.
Like Auschwitz, Treblinka was in Poland and liberated by the Soviets. Obama's staff claims that he misspoke yesterday. Instead, it turns out that one of his stock lines is just false.
And the speech in which Obama claims to have demonstrated his judgement, he instead demonstrated his ignorance.