A congressional meeting room might be the last place people would expect to find joy.

But joy was in the air on the opening day of the confirmation hearings for U.S. Supreme Court nominee Judge Ketanji Brown Jackson. Joy was in my heart and in the hearts of so many friends and colleagues who were in the room that day.

Why were we feeling joyful?

We were joyful because this brilliant judge is about to become the first Black woman ever to serve on this country’s highest court.

We were joyful because we could feel the love and pride from Judge Jackson’s parents, brother, husband and daughters.

As a father, I was joyful because my Black daughter can look to a new role model. She has a new reason to believe that her dreams, talents and hard work can take her wherever she wants to go.

We all knew that the week ahead would be a difficult one for Judge Jackson. There would be grueling 12-hour days. There would be disgraceful lies. There would be examples of barely concealed racism.

All of that happened. And none of it broke Judge Jackson’s spirit or calm professionalism.

In the face of smears and false accusations, she gracefully explained the truth about her record and her commitment to applying the law fairly.

She showed Americans a strength grounded in faith. She demonstrated self-confidence ,built over years of perseverance and accomplishment.

She spoke about her love for our country and for the U.S. Constitution.

We live at a time when the court is dominated by judges who do not share a commitment to justice for all. We live at a time when white nationalism and bigotry are openly promoted by powerful politicians and pundits. Judge Jackson’s nomination gave us a reason for renewed hope that our country can and will continue to make progress toward the ideal of equal justice under law and equal opportunity for all Americans.

It also was a reminder that millions of Americans played a part in making this moment possible.

Millions of us voted to replace former President Trump with President Biden, who made a commitment to putting a Black woman on the U.S. Supreme Court.

Millions of us contributed to the effort to elect Sens. Raphael Warnock and Jon Ossoff in run-off elections in Georgia. Those elections kept Republicans from controlling the U.S. Senate. They kept Sen. Mitch McConnell of Kentucky, the Senate GOP leader, from being able to abuse his power to prevent President Biden’s nominees from even getting a vote, as he did so often with former President Obama’s judicial nominees.

All of us who donated time and money, knocked on doors, made phone calls or sent texts to potential voters, and who cast our ballots — we all helped bring about that joyful morning on Capitol Hill. And we can all look forward to celebrating when she is sworn in as Justice Ketanji Brown Jackson.

The writer, a former national president and chief executive officer of the NAACP, serves as president of People for the American Way. He also teaches leadership at the University of Pennsylvania.