A law revisioning the demands for the Selective Service from male-only to "all Americans" could be enacted in the Senate as early as this week, according to Axios.
The question of who should be required to serve has been discussed in the US for years. Now it is expected to pass with a bipartisan faction of support, despite denunciations from Republicans saying it is part of a dispute over political equality.
This month, Missouri Senator Josh Hawley proposed an amendment to strip the gender-neutral Selective Service language out of the NDAA. It's not clear if the bill gained much support.
Republican Rep. Vicky Hartzler of Missouri spoke out against the measure on Wednesday morning.
"Using women as a chess piece in a political 'equality' argument is not only misguided but is insulting to our female population," she wrote on Twitter. "Claiming their inclusion in the draft would prove 'equality' is ridiculous."
Republican Senator Ted Cruz of Texas told reporters Tuesday, "God bless that woman if she wants to go serve in the military and is prepared to fight. That is a choice that is available to her. But I'm the father of two daughters. The idea that the government would forcibly draft them, and put them in a place where they would be engaged in combat against a man who the statistics demonstrate is likely to have significantly more body mass and significantly more body strength? That's not fair."
Conservative groups have also criticized the reform.
"There is nothing hindering women's ability to volunteer and serve in the military, so there is no need for this dangerous and unnecessary draft mandate contained in the NDAA," public policy organization the Family Research Council tweeted Tuesday.
The provision is included in the latest National Defense Authorization Act (NDAA), which overwhelmingly passed the House of Representatives by a 316 - 113 vote in September.
If passed, all US citizens aged 18 to 26 would be required to sign up regardless of gender identity.
GOP Rep. Chip Roy of Texas eviscerated his fellow Republicans who plan to vote in favor of the bill in an op-ed published Wednesday morning.
"To the many Republicans poised to make a devastating decision again, just know that I will not be able to vote for you for any office—including speaker, leader, president, or otherwise—if you vote for this," Roy said.