After numerous searches - 
Sen Cruz targets funds the government seized-or hopes to seize from El Chapo.  How much money will be seized - and how much assets- is unclear.
  I do not find that money is in the bank - but could be mistaken.
 
https://www.ajc.com/news/gen-politic...2rivRm7x2bZUO/
Probably the best article found.  Open to correction if Money is in the bank
From the article:
'Even beyond the funding issues, most Texas Republicans in Congress have  expressed opposition to the idea of building a wall along the state's  southern border, urging the president to use a more "holistic approach"  to border security. '
"
Cruz's  idea similarly made no difference to Rep. Henry Cuellar, D-Texas, who  describes the border wall proposal as "a 14th-century approach to a  21st-century challenge." 
"I appreciate Sen. Cruz thinking  creatively, but the problem with the wall is not a fiscal one; it is a  physical one," Cuellar said in a written statement. "It would involve  the government seizing private property, and cause environmental and  economic damage. We need to invest in evidence-based, smart security  measures, and empower border communities and local border patrol  commanders to apply a tailored approach."
                         
 I feel Cuellar is right - the Wall is a boondoggle. Lots of better ways to focus on enhancing border security.
  Trump has painted himself  into a political corner with the DPST's - who are not going to let him off the hook short of death or resignation - to them- preferably both.