Two women are on the cusp of making lesbian (and US) history

Maura Healey and Tina Kotek. (Photos: NBC News / Boston Globe via Getty Images; AP)

Gubernatorial candidates Maura Healey and Tina Kotek are no strangers to political firsts.

In 2009, Healey, who is now the Massachusetts attorney general, led the nation’s first successful challenge to the Defense of Marriage Act, a 1996 law that…