The speaker of the Texas House, Dade Phelan, won renomination in a runoff on Tuesday, surviving a bruising Republican primary challenge from a party activist and first-time candidate who was backed by former President Donald J. Trump and his Texas supporters. The race, in a southeast Texas district that includes part of the city of Beaumont, was a bitter political showdown among some of the most powerful players in Texas politics, and was likely to have been one of the most expensive ever for a Texas House seat. Millions poured in to the campaigns during the primary, including large donations from West Texas oil and gas billionaires and out-of-state school-choice advocates who backed the challenger, David Covey. For his part, Mr. Phelan had help from deep-pocketed donors like Miriam Adelson, the Las Vegas casino magnate and widow of the Republican megadonor Sheldon Adelson. Covey, a technical adviser to the oil and gas industry who has described himself as a “very committed Christian and a conservative,” led Mr. Phelan in the first round of voting in March, when neither candidate won a majority.

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Persons: Dade Phelan, Donald J, Trump, David Covey, Phelan, Miriam Adelson, Republican megadonor Sheldon Adelson, . Covey, Christian, ” Organizations: Texas House, Las, Republican Locations: Texas, Beaumont, West Texas, Las Vegas