When I learned that House Majority Leader Eric Cantor had lost his Republican primary, my heart sank. Not simply because I think he is an intelligent and talented member of Congress, or because I worry about the future of the Republican Party.

Like others who want comprehensive immigration reform, I worried that Mr. Cantor's loss would be misconstrued and make Congress reluctant to tackle this urgent need. That would be the wrong lesson and an undesirable national consequence of this single, local election result.

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