Virginia Beach police say one of former Gov. Bob McDonnell’s sons has been arrested for driving under the influence. Police say 23-year-old Robert Ryan McDonnell was arrested in the Sandbridge section of Virginia Beach early Thursday morning. Police say he refused a breath test and is not currently in custody. Police say Ryan McDonnell lives in Glen Allen, a suburb of Richmond. Last year, McDonnell’s other son, Sean McDonnell, was found guilty of public intoxication in Charlottesville near the University of Virginia.