11.   The election was held because of the death in March of Rep. Norman Sisisky, a longtime Democratic incumbent.

12.   The next year, she defeated a longtime incumbent to become mayor.

13.   The ruling addressed a point of contention between Goodman, a longtime Republican incumbent, and his Democratic challenger, Liz Krueger.

14.   Thompson has attacked Cooper as a Clinton supporter and as a longtime incumbent who has lost touch with his constituency back home.

15.   Party leaders in some congressional districts are still trying to find opponents for longtime incumbents.

16.   From California to Massachusetts, broadcasters are retiring their microphones and capitalizing on years of name and face recognition to take on longtime incumbents.