He didn't state 'by majority' anywhere in that comment. Approved. By popular vote, by some portion of the totality of popular vote, unspecified as far as the post goes.
Approved by enough popular vote to attain plurality. I'll take your quibble as a cute fixation with correctness when it comes to statistics, and not as it otherwise tends to manifest.
Quibble: The majority of people voted against Trump, or at least not in his favor. He only got a plurality, not a majority.