So the Conservative Political Action Committee ("CPAC") has invited the GOP candidates to tell their members why they are appropriately conservative.  Presumably unbeknownst to them (presumably), they will be joined by a number of interesting characters, including some dude named Peter Brimelow, an immigrant from Britain, who founded the VDARE, a white nationalist  group that, among other things is terrified about America's loss of its "white majority"  Here's a snippet from the press release by People for the American Way:

The conference—which will be addressed by Mitt Romney, Newt Gingrich, Rick Santorum and other GOP leaders— will be hosting Peter Brimelow, the founder of VDARE, a white nationalist website which frequently publishes the works of anti-Semitic and racist writers. Brimelow, an immigrant from Great Britain, has expressed fear of the loss of America’s white majority, blames non-white immigrants for social and economic problems and urges the Republican Party to give up on minority voters and focus on winning the white vote. He said that a New York City subway is the same as an Immigration and Naturalization Service waiting room, “an underworld that is not just teeming but also almost entirely colored.”   

Let's see which one of them has the stones to do the right thing and decline the invitation.