After Lindsey Graham's death, sister joins long list of relatives who replaced late family members in Congress

Following the sudden death of Sen. Lindsey Graham, R-S.C., Republican South Carolina Gov. Henry McMaster appointed Graham's younger sister, Darline Graham, to fill his seat for the remainder of his term, continuing a legacy of family members stepping in to take the reins of power from their kin.

When Darline is sworn in Tuesday afternoon, she will become the latest example of a U.S. lawmaker sliding into a seat vacated by a deceased family member.

Rep. Julia Letlow, R-La., is a favorite...