The U.S. Patent and Trademark Office (USPTO) refused Donald Trump's application for a trademark for "Truth Social," the name of his social media company earlier this month. A trademark lawyer in Washington surfaced the filing on Thursday.

Why it matters: The trademark refusal is just the latest setback for the former president's social media app and its parent company, which have been beset by a raft of issues over the past few months.

What's happening: The USPTO found two other companies who already use the Truth Social wording, which would create what's known as "likelihood of confusion" if Trump also got the mark. ...