Pete Buttigieg says he's "got a lot more work to do to earn" the trust of black voters Thursday is the final day for Democratic presidential candidates to qualify for the next debate, which is one week from today in Los Angeles. So far only seven candidates have done so, including Mayor Pete Buttigieg, who is surging in recent polling. In Iowa, he's in a tight race with the top candidates, and a poll in New Hampshire has him leading. Buttigieg joins "CBS This Morning" to discuss the impeachment hearings, what his record shows in helping minority communities, and how he plans to tackle the student debt crisis. Editor's note: We have updated this video to replace an incorrect graphic in the original.