That's the number. At least according to Public Policy Polling. That seems rather high. So I decided to go back and look at the RACMAR variable in the General Social Survey. Here's the question:
Do you think there should be laws against marriages between African-Americans and whites?
They kept asking the question for 30 years, but dropped it in 2002. Here's the reason:
By 2002 it was a consistent finding that less than 10% of Americans would accede to the proposition that interracial marriage should be legally banned. So the finding that that 46% of Mississippi Republicans agree with that position, and that only 40% reject it outright, is somewhat curious. Here's the question in PPP:
