How would a President Newsom handle border, immigration policy?

After a rough debate performance from President Biden, some Democrats have raised the possibility of him stepping aside for a new nominee, with Calif. Gov. Gavin Newsom’s name being mentioned as a possibility -- but how would he handle the border crisis?

Should Biden resign immediately, Vice President Kamala Harris would be the automatic successor. But if Biden were to say he didn’t wish to serve a second term, the Democratic National Convention could elect a new 2024 candidate.

Newsom...