Anti-Semitism in the 1930’s

The Volokh Conspiracy has an interesting post on anti-semitism in the 1930s.

The poll also asked: “Would you support” “a widespread campaign against the Jews in this country”?
FDR voters: 13.0% yes.
Landon voters: 9.5% yes.

Dem voters for Congress: 14.7% yes.
Repub voters for Congress: 9.8% yes.

I don’t know about you, but I’m pretty startled. Volokh comments on the significant difference between Repubs and Dems on the issue (Dems are more anti-semitic). I’m shocked that anyone would support such a thing.