Sen. Sherrod Brown has said he doesn't think pushing for universal health care all at once is practical.

So on Wednesday, the Democratic senator from Cleveland joined other senators in introducing a bill that would lower the age of eligibility for Medicare from 65 to 50.

"I support universal coverage, and I believe one of the best ways to get there is by opening Medicare up for people in their 50s to voluntarily buy in," Brown said in a statement.

Brown this month has toured early primary and caucus states as he considers a 2020 presidential run.

Unlike some of the other Democratic candidates, Brown has pushed for an incremental approach on universal health care.

“Otherwise it’s this sort of tilting at windmills where everybody feels good saying, ‘I’m for Medicare for all, I’m for Medicare for all, but nothing changes,” Brown said during a recent visit to Iowa.

Senators Debbie Stabenow, D-Mich., and Tammy Baldwin, D-Wis., co-sponsored the bill with Brown. The bill is unlikely to pass in the GOP-controlled Senate.