Trump had not officially endorsed Johnson when he became the GOP's fourth nominee for speaker during an effort to replace Speaker Kevin McCarthy, R-Calif.
This marks the second round of salaried buyouts this year for Stellantis and comes weeks after a tentative deal with the UAW covering unionized workers.
Trump Jr.'s testimony comes after a judge did not rule on a request by Donald Trump Sr.'s lawyer to throw out NY Attorney General Letitia James' fraud case.
Analysts said upcoming data on Pfizer's obesity pill, danuglipron, will be crucial to how competitive the company can be against Eli Lilly and Novo Nordisk.
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