There are no seperate bond issues that back federal lending to students. They are funded out of general obligation debt (i.e. treasuries). Despite being warned

There are no seperate bond issues that back federal lending to students. They are funded out of general obligation debt (i.e. treasuries). Despite being warned over and over again that bond vigilantes are just around the corner, for the better part of a decade now investors have been willing to take near zero interest on them. There's no reason to believe that a few hundred billion in lost repayment over 10-30 years, would move the needle at all.