Kremlin-connected entrepreneur Yevgeny Prigozhin admitted Monday that he had interfered in U.S. elections and would continue to do so — confirming for the first time the accusations that he has rejected for years.

"Gentlemen, we have interfered, are interfering and will interfere. Carefully, precisely, surgically and in our own way, as we know how to do," Prigozhin boasted in remarks posted on social media.

The statement, from the press service of his catering company that earned him the nickname "Putin's chef," came on the eve of the U.S. midterm elections.

It was the second major admission i...