But she doubts Miller will adopt her blueprint in full.
"He wants to make 401(k)s better. He doesn't want to kill the tax deduction. In my favor, he agrees I brought up genuinely credible criticisms of the 401(k) tax break as it exists now." But Democrats may draw from parts of her proposal.
"The Democrats are looking at two paths," she said.
"One is to make the 401(k) system, which is commercial and individualized, more fair, but not do anything to expand coverage or guarantee returns." The other path is to broaden coverage and guarantee returns. "I think the compromise will be a voluntary guaranteed retirement account. So that if people don't have a 401(k), or want a better alternative to a 401(k), they could put their money into a government-guaranteed fund."