WEST PALM BEACH, Florida — An online spat between factions of Donald Trump's supporters over immigration and the tech industry has thrown internal divisions in his political movement into public display, previewing the fissures and contradictory views his coalition could bring to the White House.

The rift laid bare the tensions between the newest flank of Trump's movement — wealthy members of the tech world, including billionaire Elon Musk and fellow entrepreneur Vivek Ramaswamy, and their call for more highly skilled workers in their industry — and people in Trump's Make America Great Again base who championed his hard-line immigration policies.