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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.

People are looking for leadership—those who stand for something and offer a vision for how to take America forward and keep our nation economically competitive. One of the most immediate ways to revitalize our economy is by passing immigration reform.

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I chose to come to America and become a citizen because America was—and remains—the most free and entrepreneurial nation in the world. Our history is defined by people whose character and culture have been shaped by ambition, imagination and hard work, bound together by a dream of a better life.

Is the idea of immigration reform complicated by the fact that some immigrants went outside the legal system to be here? Yes. It is complicated even more by the fear some Americans have, quite naturally, of how changing populations might also change our culture, communities and economic circumstances.

Well, of course immigration means change. Immigrants enrich our culture and add to our economic prosperity.

To continue reading Mr. Murdoch's op-ed in the Wall Street Journal, click here.