A sweeping lawsuit challenging the way Georgia elections are run is being put to its initial test Monday as state election officials try to persuade a federal judge to toss it out.

The lawsuit was filed weeks after Republican Brian Kemp narrowly beat Democrat Stacey Abrams, in a governor's race that focused national scrutiny on Georgia's outdated voting machines and on allegations of voter suppression by Kemp, who was the state's top election official during the race.

Kemp has adamantly denied allegations of wrongdoing. He signed legislation earlier this month that provides specifications for a new voting system, which the current secretary of state, Brad Raffensperger, says he'll implement in time for the 2020 election cycle.

The lawsuit accuses the secretary of state and election board members of mismanaging the 2018 election in ways that deprived some citizens, particularly low-income people and minorities, of their constitutional right to vote. It seeks substantial reforms and asks that Georgia be required to get a federal judge's approval before changing voting rules.

The suit was filed by Fair Fight Action, an organization founded by Abrams, and Care in Action Georgia, a nonprofit that advocates for domestic workers. Several churches, including Ebenezer Baptist Church in Atlanta, the spiritual home of the Rev. Martin Luther King Jr., joined the suit in February.