A little-known tradition exists in the U.S. legislature. It is the American tradition of widows following their husbands to Congress. This blog post is from Karlyn Bowman in AEI:

On March 20, Julie Letlow cleared the field by winning 62 percent of the vote in a 12-person field to fill the congressional seat of her late husband for Louisiana’s 5th House district. Luke Letlow was elected to the seat in 2020, but he died from COVID-related complications late last year. According to Roll Call, Letlow will become one of two widows currently serving in Congress, and it is possible there will soon be a third, if Republican Susan Wright wins in the competitive Texas 6th district to fill the seat of her late husband.

Read the full article here. Also, here is a list of widows who have followed their husbands to congress.