The tycoon continues his surge on the polls.
Sen. Lindsey Graham was critical of Trump's recent derogatory comments about Mexican immigrants and calls the issue a "defining moment" for Republicans.
The call responded to demands from increasingly worried party leaders.
It's an uncomfortable moment for Republicans, who want more votes from the surging Latino population.
Without lawyers, children are much more likely to be sent back to their home countries. Under federal law, they have two options to seek legal status, including requesting asylum for fear of returning home to face gang violence.