Not clear how US would get money from border wall fundraiser

An Air Force veteran has racked up millions of more dollars on his fundraising page for President Donald Trump’s U.S.-Mexico border wall, though it’s unclear how the U.S. government would get the money.
Brian Kolfage’s GoFundMe page has raised $13 million as of Friday afternoon to build the wall. Its goal is $1 billion. Kolfage says on the site that he contacted the Trump administration about how to deliver the funds.
White House officials did not immediately return an email se