Former Vice President Joe Biden would restore credibility in the White House and respect among allies around the world. Former South Bend, Indiana, Mayor Pete Buttigieg brings refreshingly smart, youthful optimism. Sen. Amy Klobuchar of Minnesota offers a track record of bipartisan achievement. Much like Warren, Bernie Sanders champions the working class.

But at this moment, our country needs more. We need a president who can work the levers of government to translate ideas into signed laws and effective regulations. We need a president committed to bringing our troops home from open-ended foreign entanglements. We need a president who understands that the American dream itself is at risk: the ideal that someone who works hard and plays by the rules can get ahead, and that their children will do even better. With Warren, the Oval Office will be occupied by someone who has made rebuilding the middle class her life’s work.

These tall tasks will require resilience and courage in the face of inevitable attacks from the GOP — both during the campaign and while in office.

Warren has proven she is tough and fearless.