MONTGOMERY, Ala. — With the furor over sexual misconduct allegations against Roy S. Moore only growing, it was his wife, Kayla Moore, who was at center stage on the Alabama Capitol steps on Friday, her gold cross earrings glinting in the sun as she defiantly defended her husband.

“Let me set the record straight,” Ms. Moore said. “He will not step down.”

As Mr. Moore wages a two-front battle against the accusations by nine women of sexual misconduct and unwanted advances, and against Washington Republicans who want nothing more than for him to exit the race for an Alabama Senate seat, the limelight is shining on his most prominent defender: his wife.

Over 32 years of marriage, Ms. Moore has been a constant, if reserved, part of her husband’s public life.

Take the time in August, when as Mr. Moore spoke at a Baptist church in Jasper, Ala., Ms. Moore discreetly rose from the last pew and set up a card table in the sanctuary with pamphlets and copies of the candidate’s books.