July 21 (Reuters) - The following are the top stories on the New York Times business pages. Reuters has not verified these stories and does not vouch for their accuracy.

- U.S. President Trump imposed a 50% tariff on a wide range of Canadian goods claiming that Canada had discriminated against three United States industries namely, motor vehicles, dairy and alcohol.

- A federal judge Araceli Martínez-Olguín temporarily stopped Paramount PSKY.O from completing its $110 billion acquisition of Warner Bros. Discovery WBD.O while she considers a lawsuit that argues the deal violates antitrust laws.

- The Trump administration sought phone records of several New York Times NYT.N journalists and their relatives in efforts to seek confidential sources who had provided information for articles about the president's new Qatari-donated Air Force One jet.

- The U.S. Food and Drug Administration said that the basis for linking Taylor Farms' lettuce from Central Mexico to the cyclospora outbreak remains unchanged, despite the agency's retraction of what it had said was a positive test of a lettuce sample for the parasite.