Bredar was born on February 6, 1957, in Omaha, Nebraska[1] and he was raised in Denver, Colorado, where he attended parochial and public schools.

During 1991 and 1992, Bredar served as a project director for the Vera Institute of Justice, a research organization based in New York.

Bredar denied a request by then-recently appointed Attorney General Jeff Sessions to postpone signing for thirty days in order to give the new administration time to review the decree; Bredar said the Court was satisfied with the decree and that it was time to get the changes underway.

In a 5–4 decision issued in June 2019, the Supreme Court held that partisan gerrymandering claims present nonjusticiable political questions.

[10] Justice Kagan, dissenting, observed that "[f]or the first time ever, th[e] Court refuses to remedy a constitutional violation because it thinks the task beyond judicial capabilities."

In an opinion at an earlier stage in the Benisek proceedings, Bredar had noted that "[p]artisan gerrymandering is noxious, a cancer on our democracy.