Margaret Sullivan: Whether it be quirks or ‘cackles,’ campaign coverage of women is largely unfair

Sen. Kirsten Gillibrand, D-N.Y., cooks steak and fish for dinner at her home in Washington, Tuesday, Feb. 12, 2019. Gillibrand isn’t just embracing her role as a mother on the campaign trail, she's running on it. She opens her stump speech declaring she will “fight for your children as hard as I would fight for my own.” (AP Photo/Carolyn Kaster)