DOVER, Del. — Former governors, lawmakers, community leaders and a former Philadelphia Phillies owner are among scores of Delawareans vouching for a disgraced bank president facing years in prison for fraud. Former Wilmington Trust president Robert Harra Jr. and three other bank officials face sentencing this month after being convicted of misleading regulators and investors about Wilmington Trust’s massive amount of past-due commercial real estate loans before the bank was hastily sold in 2011. The century-old bank imploded despite receiving $330 million from the federal Troubled Asset Relief Program. Attorneys for all four defendants filed lengthy sentencing memoranda this week seeking leniency for their clients. A court filing Friday shows that those vouching for Harra include former governor Jack Markell, former governor and congressman Mike Castle, and former Phillies owner Ruly Carpenter III.