Heidi Stevens: As President Trump grows increasingly erratic, I wonder what would happen if a female president behaved this way?

Remember this time three years ago, when visions of broken glass ceilings and historic firsts danced in some of our heads?

When a woman seemed poised to be sworn in as president of the United States for the first time in our nation's history? When cautious excitement crackled in the air? Are we really going to do this?

We would not, in the end, be doing this. We would, in the end, be ushering in a different set