Jill Biden’s primary role is protector in chief for husband

Jill Biden speaks to reporters while campaigning for her husband Democratic presidential candidate and former Vice President Joe Biden, during a voting poll meet and greet Tuesday, Nov. 3, 2020, in St. Petersburg, Fla. (AP Photo/Chris O’Meara)

WASHINGTON — She’s fended off protesters who made a run at her husband. She’s moved him farther from reporters during the coronavirus pandemic. She’s supported his presidential ambitions again and again — except in 2004, when she deployed a novel messaging technique to keep Joe Biden from running.