Biden 2007: We should mandate paper ballots

"Which is what people usually mean by election reform. How are you gonna keep it from us being able to be in a position where you can manipulate the machines, manipulate the records?  I think we should pass a federal law mandating that the same machines with paper trails be mandatory for every federal election……….we cant mandate state elections…So in a nutshell I think we should be mandating that we have a paper ballot with a standardized machine, standardized requirement."
H/T @cameronlackney