When Robert Murphy said he wanted to try to get his student loan debt erased, the person overseeing his bankruptcy case told him he had a better shot of getting hit by a bus. Now he’s closer than ever to victory.

The unemployed 65-year-old, acting as his own attorney, spent three years appealing his way to the Boston federal court that is now considering his case. A win for Murphy would relieve him of hundreds of thousands of dollars in student debt—and could fundamentally change the way U.S. bankruptcy courts handle borrowers who can’t repay college loans.