Let's review some basic facts

In case you've been living in a cave for the past three years, Barack Obama is half-black. His mother might have been whiter than freshly-fallen snow, but that does not change the fact that for all appearances, and somewhat culturally, Mr. Obama is black.

I think, given that Mr. Obama is not white, we can safely assume he's not a Nazi, given that a fundamental belief of the Nazi party by and large wasn't a tremendous fan of people who did not fit their specific definition of whiteness.

Some crazies apparently think that the logo for Obama's proposed health care program resembles the Eagle/swastika Nazi logo. To this I say:
1. Actually no it doesn't so do shut up.
2. Even if it did - which, again, it doesn't - here's some bad news: The Nazis had freaking awesome symbology. That's part of how the rose to power - they looked powerful, and unified, and overall pretty damn sharp. Their symbols and uniforms were brilliant, and so arguing that Obama's doodle looks like it...well, if it's true that would mean at most that it's a snappy looking logo.