In a political upset for the history books, Kendra Horn broke a 44-year Republican hold on Oklahoma's 5th congressional district Tuesday, turning the Oklahoma City-area district blue for the first time since the mid-1970s.

Defying expectations, polls, experts, opponents and history itself, Horn defeated U.S. Rep. Steve Russell in a race that went down to the wire. Horn garnered 121,013 votes, or 51 percent of the total, to Russell's 117,725 votes, or 49 percent.

“I am so excited and inspired by all of our amazing supporters and volunteers, all of the work that we put in to change the conversation and the way that we're running campaigns," Horn said on KOCO-TV late Tuesday night. "We talked about health care, we talked about education and all of these people are the ones who helped make it happen.

“It's a historic election moment for a number of reasons. I am the third woman ever elected to represent Oklahoma in Congress, and we are talking about issues that are so important.”