Private student-loan lenders are gearing up for President Donald Trump's federal repayment changes. Chris Jackson/Getty Images Trump's federal student-loan repayment changes could drive more borrowers to private lending. Major private lenders said they're prepared to compete for the new business. The influx is expected to begin in July, when new federal borrowing caps go into effect. Private student-loan lenders have big things in store for federal borrowers. During earnings calls in late April, the leaders of major private lenders, including Sallie Mae and Navient, said that they're ready to compete for federal borrowers once President Donald Trump's sweeping repayment changes take effect in July. One major change is new caps on borrowing. Trump's "big beautiful" spending legislation eliminated the Grad PLUS program, which let students borrow the full cost of attendance, and put new borrowing limits on advanced degrees.…