The facility has been used to hold detainees accused of terrorism since 2002. The majority of immigrants sent to Guantanamo ...

Now, Donald J. Trump’s commanding victory may be ushering in a big-tent era for Republicans. Even before he takes the oath of office on Monday, cracks in his freshly expanded coalition have emerged.

In response to Mr. Trump’s order, U.S. forces have already put up 50 Army green tents inside a chain-link-fence enclosure, adjacent to a barracks-style building called the Migrant Operations Center.

And days before he takes office some of Trump’s most ardent original supporters have been the most resistant to the bigger tent. “There’s going to be a fundamental ideological clash between the ...