Rosalynn Carter

DALE ZANINE / USA TODAY SPORTS / REUTERS

Former first lady Rosalynn Carter says her husband is doing "really well" after a fall.

John Bazemore / AP

As former President Jimmy Carter continued healing Wednesday night from hip surgery, his wife, Rosalynn, felt faint and was admitted for observation, according to the Carter Center.

Both Carters walked out together Thursday morning.

Updated at 1 p.m. ET

First ladies have a long history of advocating for issues important to them, often issues related to children. But what's unusual is to have all the living former presidents' wives speaking out in one voice.

America's current and former first ladies are pushing back against the Trump administration's practice of separating children from their parents at the border in an effort to curb illegal crossings.