President Joe Biden issued a challenge to Congress on Saturday “to act swiftly to recognize ratification of the [Equal Rights Amendment]”—part of his official proclamation on Women’s Equality Day.

“It is long past time to definitively enshrine the principle of gender equality in the Constitution,” said Biden. “Together we can and must build a future where our daughters have all the same rights and opportunities as our sons, where all women and girls have a chance to realize their God-given potential, and where we can finally realize the full promise of America for all Americans.”