http://video.google.com/videosearch?q=max+baer&sitesearch=&aq=f#sitesearch=&aq=f&q=max%20baer%20schmeling
Baer sports Mogen David.
The video that loads on the Google search page you linked to is actually a fight between Baer and Braddock. I don't think Braddock was a Nazi. After his boxing career was over, Braddock was a successful businessman in the construction industry and helped build the Verrazano bridge.
On the same page, there is video of Max Baer boxing Max Schmelling. Schmelling was indeed the toast of Nazi Germany after defeating Joe Louis in their initial match. Louis absolutely destroyed Schmelling in their rematch in Yankee stadium. Schmelling was taking such a pounding that the radio feed of the bout back to Germany was pulled by the Nazis to save their hero embarrassment.
Schmelling's sentiments towards the Nazi regime has been oft debated. Most people think he was anti-Nazi but went with the flow, in order to continue his career. I'm pretty sure Schmelling had a Jewish manager. It should be noted that Schmelling survived the war and went on to become a successful distributor of Coca Cola in Germany and became friendly with Joe Louis.
Max Baer was defeated by Braddock in the video that was linked to. Baer wasn't a great boxer, but was a tremendous power puncher with phenomenal knockout ability. He didn't like getting hit (who does ?) and didn't have a very sturdy chin. He was reputed to be quite a playboy. Max Baer's son, Max Baer Jr., went on to fame playing 'Jethro Bodine' on the popular sit-com 'The Beverly Hillbillies'.