When last we left Donald J. Trump, at least here on the sports page, we were recalling the time he owned the New Jersey Generals in the short-lived United States Football League. Trump bought the Generals in 1983, after its first season, and immediately began pushing the league to move its season from the spring to the fall and take on the mighty N.F.L. His campaign generated a tremendous amount of publicity for Trump, but produced nothing but misery for the other owners. After a Trump-orchestrated antitrust suit against the N.F.L. backfired spectacularly, the once-promising league went kaput.