We've got to wonder out loud about a public official who compares his political opposition to Nazis.

When the speaker is Indiana Treasurer Richard Mourdock, well .. we don't wonder quite so much.

Mourdock has a penchant for making stupid statements.

His latest misstep came during the Indiana Republican Party convention in Fort Wayne on Saturday. Mourdock likened Democrats in the United States today to the Nazis of mid-1930s Germany.

According to The Associated Press, Mourdock, who because of term limits cannot seek another term, warned against politicians who promise entitlements and more spending as the nation's debt grows.

He said that's what happened in Germany, leading to the electoral success in 1936 of the National-Socialist Party - the Nazis.

"The people of Germany in a free election selected the Nazi Party because they made great promises, that appealed to them because they were desperate and destitute," Mourdock said, adding that once in power the Nazis "went after the Jews, they deprived them of their property, their rights, their citizenship," apparently because the country was bankrupt and the Jews had money.

Sympathy and prejudice in the same sentence. That's quite a trick, Mr. Mourdock.

Afterwards, he said his comments were not meant as a direct comparison to President Obama specifically or to Democrat politicians in general, but it's hard to see how they were anything but.

Mourdock, you will remember, made some ill-considered comments about rape, essentially handing the U.S. Senate race to Democrat Joe Donnelly in 2012.

The best that state GOP chairman Tim Berry could say when told of Mourdock's comments, according to AP, was that comparisons to Nazis are generally inappropriate.

To their credit, the responses of many Republican delegates to Mourdock's comments on Saturday were highly repulsive.

"Mourdock likens my country to Nazi Germany. Not my country, Mr. Mourdock! So shameful the day after D-Day anniv. GO AWAY!" Mike Murphy, a Marion County Republican delegate and former local chairman, wrote in a tweet.

But that's the way it is in a democracy, where disagreement doesn't just exist but is openly expressed - and even encouraged.