Tesla Inc. accused U.S. regulators of harassing Chief Executive Elon Musk over his compliance with a 2018 regulatory settlement that sought to restrict his use of social media.
In a letter filed Thursday with a federal judge who oversaw that settlement, attorneys for the company charged that the Securities and Exchange Commission is conducting unfounded investigations of Mr. Musk and Tesla. Earlier this month, the electric-car maker disclosed that regulators sent a subpoena last year that sought information showing how the company and its CEO complied with the terms of the deal.