WASHINGTON—President Trump is expected to sign an order later Monday temporarily barring new immigrants on a slate of employment-based visas, including the H-1B for high-skilled workers, from coming to the U.S. amid the coronavirus pandemic.

Administration officials say the move will safeguard jobs for unemployed Americans. Tech-industry officials and other business leaders have warned that the decision will cramp companies’ ability to recruit top talent to the U.S. and leading them to move more operations abroad.

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