In retaining her full-time job, Biden is breaking tradition — and a glass ceiling that has hovered over first ladies throughout US history. It is the second time she has made this particularly kind of history: when her husband was vice president, she became the first second lady of the United States to hold a full-time job. As second lady, she not only spent her time grading papers and teaching classes, but leveraging her political role to fight for things like free community college. That dedication no doubt comes in part from her career as a teacher at a community college, a job that…
