Washington (CNN) - Sen. Daniel Inouye, the chairman of the powerful Senate Appropriations Committee, is the latest signatory to a letter calling on Senate Majority Leader Harry Reid to pass a health care public option using reconciliation, his office confirmed to CNN.
The letter, penned by Sen. Michael Bennet, D-Colorado and co-signed by Sens. Kirsten Gillibrand, Jeff Merkley, and Sherrod Brown, was released last Tuesday. It now has 23 signatories, all of whom are Democrats. The letter is chiefly promoted by the Progressive Change Campaign Committee.
Michigan Sen. Debbie Stabenow also signed the letter on Monday, according to her office. Stabenow has long supported a public option and is a member of the Senate Finance Committee. Three other Finance Committee members have signed the letter.
The White House unveiled a health care proposal Monday that does not include a public option.