For the past six months, we've been checking in with the spouses of presidential candidates.
In our latest conversation, Michele Norris talks with Jill Biden, wife of Democratic Sen. Joe Biden of Delaware. Jill Biden teaches English at a community college during the week and spends most of her weekends on the campaign trail.
She says if her husband doesn't do well in the early races — Iowa, New Hampshire, Nevada and South Carolina — there would be no point in continuing with the campaign. That said, she expects him to finish very strongly in Iowa.