"We all, everybody, I think I can speak for everybody, we want - (Republican Sen.) John Cornyn from Texas - we all want DACA to happen, but we also want great security for our country".
The US president originally estimated a $12 billion (£9.6 billion) figure, while a report from the Department of Homeland Security that was leaked a year ago almost doubled it to $21 billion (£16.8 billion), with completion slated for 2020.
"The final border apprehension numbers of 2017, specifically at the southern border, undeniably prove the effectiveness of President Trumps commitment to securing our borders", Tyler Houlton, a spokesman for the agency, said in a statement.
Democrats have been pushing back against these requests, including the $18 billion the administration has requested for the wall and an additional $15 billion for additional border security expenditures.
Arrests of people trying to cross illegally from Mexico to the United States dropped to their lowest level since 1971, which customs authorities attribute to better control of the border and noticeably fewer attempts to cross. The Trump administration announced in September that it was ending the Obama-era program, but gave Congress several months to act before recipients begin to lose their protected status in March.
'The Democrats have been told, and fully understand, that there can be no DACA without the desperately needed WALL at the Southern Border and an END to the disgusting Chain Migration & ridiculous Lottery System of Immigration etc.
Mourinho rounds on Scholes in tirade over Pogba flak
We have a fantastic relationship, we give our best, we try to do well always and when we don't we stick together and fight. I think Scholes will be in the history books as a phenomenal player, but not as a pundit'.
Mexico has steadfastly rejected Trump's demand that it pay for the wall and few doubt that US taxpayers will foot the bill if the wall is built. Across the Southwest, border officers are stopping more than 1,000 people a day.
Nor would a wall stop illegal immigration, other experts said.
Republican priorities could be stopped in their tracks if the Democrats are successful during the midterm elections.
Congress must work quickly, however, to approve a funding plan by January 19 to avoid a government shutdown.
Asked what has differentiated Trump from his predecessor on immigration up to this point, Vaughan said that "the biggest difference we're seeing is in the interior of the country, where President Trump's administration has dramatically increased immigration enforcement in our cities and towns". "The wall is going to happen, or we're not going to have DACA". We have to get rid of chain migration.
But shortly after his dramatic announcement that, unlike previous presidents, he is doing just that, President Trump did exactly what his all his predecessors had done - he signed the waiver of action, allowed by law, delaying the move for another six months.