Agreed. Paul should have exercised more control over his underlings, or stayed out of electoral politics. Pat Buchanan made numerous controversial statements over the years in his columns and books, but never denied his authorship.
How prudent was it for Paul to run for president, knowing that sooner or later these newsletters could become an issue in his campaign? What other skeletons does he have in his closet? If he got the nomination, the Democrats would eat him alive.