"I don't think so," Gillibrand responded. "I mean, obviously, women are not a monolith. We don't agree on everything."
McCaskill also addressed the focus on her disagreement with Gillibrand in an interview on MSNBC's "Now With Alex Wagner" earlier in February.
"I'm a little upset that there's been so much attention to the fact that two women disagree on something," McCaskill said when asked about Gillibrand's legislation. "I wonder if there would be so much attention if men disagreed?"
Much of the attention paid to sexual assault in the military focuses on women. However, the New York Times has pointed out that the majority victims of such attacks are men.