Democratic Sen. Ben Cardin of Maryland says he will retire at the end of his third term.

WASHINGTON – Former Sen. Paul Sarbanes, who represented Maryland for 30 years in the Senate as a leader of financial regulatory reform and drafted the first article of impeachment against Republican President Richard Nixon during the Watergate scandal as a congressman, has died, his son said. Rep. John Sarbanes, the late senator's son, said his father died peacefully Sunday night in Baltimore. Sarbanes entered politics in 1966 with a successful run for Maryland’s House of Delegates before reaching Congress four year later. Known for his cerebral and self-effacing manner, Sarbanes focused during much of his career on complex and seemingly humdrum economic issues. Sarbanes, the son of Greek immigrants, was a native of Salisbury on Maryland’s Eastern Shore.