Opinion writers and outside contributors give their rankings of the Democratic contenders for “the second toughest job in America.”

‘We’re Hungry’: The Liberty Aim High in a Bounce-Back Season
The Liberty had the worst record in the W.N.B.A. last year. But the return of Sabrina Ionescu and the addition of league veterans could turn things around.

Shohei Ohtani Is Thriving as a Two-Way Star
With the so-called Ohtani rules junked, the Angels’ “super freak” is dominating as a hitter and a pitcher. “There are things that he can do on a baseball field that other people can’t.”

Delta will require that new employees be vaccinated.
Unvaccinated employees could face restrictions, like not being allowed to work on international flights.

Oxygen crisis unfolds as climbers chase Everest dreams
India’s brutal second wave of coronavirus has spilled into neighboring Nepal, including Mount Everest. Despite the government’s denial, a tour company told CNN more than 30 of their Everest clients have tested positive in Nepal. CNN’s Anna Coren speaks with a veteran climber who aborted his trip for fear of catching Covid-19 on the mountain.

Robert Durst’s lawyers say he has bladder cancer and ask to postpone trial indefinitely
Robert Durst, the subject of the HBO crime documentary “The Jinx,” has bladder cancer that is not being treated, Durst’s attorneys told CNN Thursday.

University of South Carolina President Resigns After Speech Blunders
Robert Caslen, a retired Army lieutenant general, was accused of failing to credit a lengthy passage in a commencement speech he delivered.

Vaccinated Americans May Go Without Masks in Most Places, Federal Officials Say
Fully vaccinated people do not have to wear masks or maintain social distance indoors or outdoors, with some exceptions, the C.D.C. advised.

What Do Used Car Prices Say About Biden’s Agenda?
What did we learn from April’s inflation report? Not much.

NASA’s Perseverance rover gets up close and personal with Martian surface
NASA’s Perseverance Mars rover, which reached the red planet in February, has sent back some incredibly detailed imagery showing the Martian surface up close.