(CNN) Democrat Stacey Abrams on Friday acknowledged that Republican Brian Kemp will become the next governor of Georgia, ending her bid to become the first African American woman elected to lead a state.

The announcement followed more than a week of post-election legal maneuvering from her campaign and allies as they sought to find enough votes to reduce Kemp's lead and force a December 4 runoff.

Abrams was considering further legal challenges as recently as Friday morning, but ultimately made the decision to end her campaign in a fiery speech to supporters at her headquarters in Atlanta. She did, however, announce plans for a "major federal lawsuit against the state of Georgia for the gross mismanagement of this election and to protect future elections from unconstitutional actions."

Even in acknowledging defeat, Abrams insisted her speech was not giving a concession and instead delivered a series of sharp criticisms of Kemp.

"So let's be clear -- this is not a speech of concession, because concession means to acknowledge an action is right, true or proper," she said. "As a woman of conscience and faith, I cannot concede that. But, my assessment is the law currently allows no further viable remedy. Now, I can certainly bring a new case to keep this one contest alive, but I don't want to hold public office if I need to scheme my way into the post. Because the title of governor isn't nearly as important as our shared title -- voters. And that is why we fight on."

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