Some of the proposals for tackling student debt

President Barack Obama and lawmakers in Congress are debating how to address the issue of rising student loan debt, something experts say is contributing to the widening gap between the rich and everyone else. Some of the proposals:n Obama has proposed extending the "pay-as-you-earn" repayment plan to all student borrowers. The program limits student loan payments based on income but is only available to borrowers who took out loans after October 2007.

* Sen. Elizabeth Warren, D-Mass., has proposed allowing people with high-interest student loans to refinance at today's 3.86 percent rate and would pay for it by raising taxes on the wealthiest Americans.

* Sen. Kirsten Gillibrand, D-N.Y., introduced the Federal Student Loan Refinancing Act in May to allow borrowers who received loans under the Direct Loan or Federal Family Education Loan program after July 1, 2006, to consolidate them into one with an interest rate of 4 percent or less. Instead of paying more than $47,600 over the life of a 20-year, $26,000 loan, the borrower would pay $37,800.

* Rep. Frederica Wilson, D-Fla., introduced the Student Loan Borrowers' Bill of Rights Act, which would remove educational loans from debts that can't be discharged in bankruptcy.

* The Student Right to Know Before You Go Act of 2013, with Republican and Democratic sponsors, requires colleges to report data to offer students cost-benefit analyses comparing how much they can expect to earn in a particular field with how much they will owe after earning a degree in a given subject.

* Sen. Marco Rubio, R-Fla., has called for "student investment plans." Private investment firms would cover tuition costs that could be repaid later as a fixed percentage of a graduate's income for a set number of years, regardless of whether that amount covers the total debt. Rubio said he still owed more than $100,000 in student loans when he became a senator in 2011. His office said he repaid his student loans in December 2012 with proceeds from his autobiography.