When was the last time a special election candidate whose seat was vacated because of a Cabinet selection outperformed the previous time the House race on the ballot?
What makes this question relevant to current events:
I read online that someone claimed that the New Mexico special had a larger margin than the general House race.
It was the first time in DECADES where the margin in a House special to replace a cabinet member (+25) grew over the last general election margin for the seat (+16).
(It also narrowly beat the presidential margin but that isn't the subject of this question.) This is true. But I want to know about what it said that "it was the first time in decades where the margin ... grew ...".