Unlikely Bedfellows on Immigration Reform

Unlikely Bedfellows on Immigration Reform

Michael Bloomberg, the independent mayor of New York City, is no one's idea of a hardline Republican conservative. Media titan Rupert Murdoch, whose empire includes Fox News and The Wall Street Journal, is no one's idea of a squishy Republican moderate. And Boston Mayor Thomas Menino, a lifelong Democrat, is no one's idea of a Republican at all.

It isn't every day that three men with such disparate ideological profiles find common cause, let alone on a high-profile issue that has been roiling American politics for years. But there they were at Boston's Seaport Hotel one evening last week,...