For the cover story of our Aug. 2 issue, Jim Rutenberg wrote about efforts over the last 50 years to dismantle the protections in the Voting Rights Act of 1965, the landmark piece of legislation that cleared barriers between black voters and the ballot. The story surveyed a broad sweep of history and characters, from United States Chief Justice John Roberts to ordinary citizens like 94-year-old Rosanell Eaton, a plaintiff in the current North Carolina case arguing to repeal voting restrictions enacted in 2013. The magazine received an unusual volume of responses to this article, most notably from President Barack Obama.

I was inspired to read about unsung American heroes like Rosanell Eaton in Jim Rutenberg’s ‘‘A Dream Undone: Inside the 50-year campaign to roll back the Voting Rights Act.’’

‘‘We the People of the United States, in Order to form a more perfect Union. ...’’ It’s a cruel irony that the words that set our democracy in motion were used as part of the so-called literacy test designed to deny Rosanell and so many other African-Americans the right to vote. Yet more than 70 years ago, as she defiantly delivered the Preamble to our Constitution, Rosanell also reaffirmed its fundamental truth. What makes our country great is not that we are perfect, but that with time, courage and effort, we can become more perfect. What makes America special is our capacity to change.