It's unclear at the moment what the executive order will say.
U.S. Senators Bob Corker and Lamar Alexander of Tennessee each issued statements Monday decrying the Trump administration policy of separating children detained at the U.S./Mexico border from their parents.
"I'll be signing something in a little while that's going to do that", Trump said Wednesday at the White House. She was at the White House where Trump told reporters he would be "signing something" shortly.
"Putting children in the same cages as their parents isn't a solution", said Jose Servin, an activist with the California Immigrant Youth Justice Alliance.
Senate Majority Leader Chuck Schumer (D-N.Y.) said, "Anyone who has seen the photos, heard the audio of small children alone and afraid, crying out for their parents, can not help but feel horror and disgust".
An audio recording that appears to capture the heartbreaking voices of Spanish-speaking children crying out for their parents at a USA immigration facility has stoked the outrage over the Trump administration's policy of separating immigrant children from their parents.
"If we pass legislation to end the lawlessness, we won't face these awful choices", Attorney General Jeff Sessions said while Mr. Trump added, "the Democrats have to change their law - it's their law". On the other hand, if authorities detain the family under the Flores agreement, the children must be separated.
U.S. Rep. Yoder urges Sessions to halt separation of families
Prior to Trump assuming the role of president, anyone who brought a child with them across the border was given "immunity from prosecution".
"We're going to keep families together but we still have to maintain toughness or our country will be overrun by people, by crime, by all of the things that we don't stand for and that we don't want. Republicans want security. But I am working on something - it never ends!"
It also moves parents with children to the front of the line for immigration proceedings.
Phoenix immigration attorney Margarita Silva said there are a number of barriers parents face when they're deported and are trying to find their children.
Katharina Obser, a senior policy adviser at the Women's Refugee Commission, said the order could result in expanded detention for immigrant families. "We will have that as the same time we have compassion".
Trump told Republicans during a closed-door meeting Tuesday night that he would support them "1,000 percent" on immigration but did not specifically back either bill.
They don't care about crime and want illegal immigrants, no matter how bad they may be, to pour into and infest our Country, like (criminal gang) MS-13.
Mr Sessions announced a "zero-tolerance" policy to criminally charge and jail undocumented border crossers. More than 2,300 minors were taken from their parents between early May and early June, according to statistics from the Department of Homeland Security.