Joe Biden's third presidential bid is entering a critical stretch after a disappointing finish in the Iowa caucuses.
It sent the former vice president on to New Hampshire with a skittish donor base, low cash reserves and the looming threat of billionaire rival Michael Bloomberg and his unlimited personal wealth.
On Tuesday, Biden insisted he had a "good night" in Iowa even as incomplete returns showed him in fourth place, well behind the top moderate candidate, former South Bend, Indiana, Mayor Pete Buttigieg, and barely ahead of fifth-place Minnesota Sen. Amy Klobuchar.
That makes even some Biden backers nervous about whether he can regain front-runner status.
