Donald Trump, 2016 presidential candidate, in a statement, "Immigration Reform That Will Make America Great Again," available on Trump's 2016 presidential campaign website, accessed on May 3, 2016, stated:

“A nation without borders is not a nation. There must be a wall across the southern border… Mexico must pay for the wall and, until they do, the United States will, among other things: impound all remittance payments derived from illegal wages; increase fees on all temporary visas issued to Mexican CEOs and diplomats (and if necessary cancel them); increases fees on all border crossing cards – of which we issue about 1 million to Mexican nationals each year (a major source of visa overstays); increase fees at ports of entry to the United States from Mexico [Tarriffs and foreign aid cuts are also options]. We will not be taken advantage of anymore.”

May 3, 2016