[2] After graduating, she served as a law clerk for Judge Eugene E. Fike II of the Somerset County Court of Common Pleas.

[3] She served as a captain in the United States Army Judge Advocate General's Corps, continued her service as a major in the U.S. Army Reserve, and currently served as a colonel in the West Virginia Air National Guard as a reserve member of the United States Air Force Judge Advocate General's Corps until 2019.

She was the sole prosecutor in the Johnstown, Pennsylvania, branch office and handles a wide variety of federal criminal matters.

President Trump nominated Haines to the seat vacated by Judge David S. Cercone, who assumed senior status on November 24, 2017.

[7] On July 30, 2019, the United States Senate invoked cloture on her nomination by a 87–1 vote.