Truthdig Editor-in-Chief Robert Scheer and the other “Left, Right & Center” panelists discuss House Majority Leader Eric Cantor’s unexpected loss to a tea party challenger. The National Review’s Rich Lowry calls it “one of the most stunning upsets any of us have ever witnessed.” Scheer says the defeat is “a response to pain” in the region. Does this mean the tea party is actually not losing power? Lowry says it “is never going away.” What does this mean for immigration reform? Can the GOP compete for the White House in 2016 without addressing immigration reform?

In Iraq, Sunni insurgents have taken the city of Mosul and captured two more cities as they advance toward their goal of taking Baghdad. What could or should the U.S. do now?

Joining Scheer and Lowry this week is Amy Walter of The Cook Political Report, moderating from the center.

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— Adapted from KCRW by Alexander Reed Kelly