Mark Krikorian. Runners up Col. Ralph Peters and Bill Hemmer.

America's Voice has more on Mark Krikorian here: Five Key Facts on CIS’ ‘Worst Person in the World’ Krikorian, Leader of Sotomayor Attack:

Here at America's Voice, we have been following Krikorian, who is often cited as a neutral "expert" on immigration despite his extreme affiliations, very closely. Today we're releasing a report providing necessary background on Krikorian and his extreme viewpoints. As Olbermann's "Worst Person" continues to grace the national stage with his absurd commentary on the Sotomayor hearings and the upcoming immigration reform debate, here are five things everyone should know about him:

• Mark Krikorian is a protégé of John Tanton, who created the main anti-immigration organizations, including the Center for Immigration Studies.

• Krikorian's mentor, Tanton, has long-standing and well-established ties to white nationalist groups, according to the Southern Poverty Law Center.

• Krikorian's group, CIS, was started as a program of the Federation for American Immigration Reform (FAIR), another Tanton group. FAIR has been designated a "hate group" by the Southern Poverty Law Center.

• Krikorian thinks Republicans should always oppose immigration reform because, he claims, immigrants are usually Democrats- specifically, Irish and Hispanic immigrants. (No mention of how the GOP continues to lose on immigration wedge politics here!)

• Krikorian, from his perch at NRO, warned Democrats they'd lose the 2008 elections by supporting immigration reform. Yep.