A growing group of Texas lawmakers are calling for an end to Trump's "zero tolerance" policy.

Republican House Speaker Joe Straus penned a letter to President Trump Tuesday saying there's no federal law requiring separating children from parents and doing so adds to the trauma they have often faced in their countries of origin.

Meanwhile, both Republicans and Democrats are calling on Gov. Greg Abbott to take an active role to stop the separation of immigrant families. Rep. Cesar Blanco, D-El Paso, asked Abbott to cancel the deployment of the Texas National Guard to the border until the federal government stops the policy.

Dallas Republican lawmaker Jason Villalba called on Abbott to have the state provide facilities where families can be kept together while their immigration status is processed. He even offered to lead the charge to find private funds to pay for such facilities.

Abbott's office has not returned our request for a comment. His Democratic opponent, Lupe Valdez, said if she was governor she would not "silently condone these vile practices." Another Democrat looking to upset an incumbent Republican this fall is calling on his opponent to organize attorneys to represent the children.

Nelson is an Austin-based trial lawyer challenging Attorney General Ken Paxton.

"I call on Ken Paxton to join us and make sure that lawyers should be leading the charge to stop this unconstitutional policy," said Nelson. "This is not a partisan issue, it's a moral one."

Paxton’s campaign sent Capital Tonight a statement Tuesday evening backing the President’s policy.

"The separation of families should never be a desired outcome and our hearts goes out to these children being used as 'pawns' in a political debate.  The issue is whether we’ll have a secure border or an open-border. The Trump Administration is following the law," Paxton said.

Click the video link above to watch the full interview with Nelson discussing border separations and his campaign’s “Walk the Lines to End Gerrymandering” initiative.