Musk’s Twitter Buy Is Outside Antitrust Agency ‘Strike Zone’

Elon Musk’s deal to buy Twitter Inc. is drawing political fire, but his path to antitrust regulators’ approval poses fewer obstacles.

The Tesla founder’s plans to take the company private will undergo regulatory review by one of the main U.S. antitrust regulatory agencies, the Justice Department’s antitrust division or the Federal Trade Commission. But the billionaire’s lack of holdings in other social media companies and existing competition in social media—albeit concentrated among a few giants—could mute concerns over market share or other antitrust issues, attorneys said.

“Elon Musk is not involved in a company that either competes with Twitter or ...