WILMINGTON, Del. — Former Delaware Gov. Mike Castle, a Republican moderate who championed creating the popular 50 State Quarters Program of commemorative coins while he served in Congress, has died. He was 86. The Delaware Republican Party announced that Castle died Thursday in Greenville but shared no other details.

Michael N. Castle, Delaware's lone and longest-serving member of the House of U.S. Representatives and was also Delaware's governor, has died at 86.

Mike Castle, former Delaware governor and congressman, dies at 86, politicians say 00:31. Delaware politicians say Mike Castle, one of the First State's best-known political figur