Mr. Scruggs -- who is arguing the case with his son Zach ; a colleague from northern Mississippi , Don Barrett ; and John Jones from Jackson , Miss . -- said he had already filed suit on behalf of about 2,000 clients seeking redress from their insurers , including Senator Trent Lott , who is both a neighbor of Mr. Scruggs in Pascagoula and his brother-in-law ; and Representative Gene Taylor of Bay St. Louis .