As of Monday afternoon all Senate Republicans have signed on to legislation seeking to repeal healthcare reform.

At the same time a federal judge struck down the law as unconstitutional, Sen. Jim DeMint (R-S.C.) announced that all 46 other Republican senators signed onto his bill seeking the full repeal of President Obama's signature initiative.

DeMint introduced the legislation, which mirrors the House-passed repeal bill, last week as a vehicle to put fellow senators on the record about their support (or lack thereof) for the law.

There had been some stragglers. When the bill was first announced, 11 GOP senators hadn't yet signed on. As of this morning, when DeMint's office did an update, four Republican senators — Lamar Alexander (Tenn.), Thad Cochran (Miss.), Susan Collins (Maine), and Chuck Grassley (Iowa) — hadn't yet co-sponsored DeMint's bill. They have now done so.

Their support gives Republicans a unified front in opposition to the healthcare law, and it arrives after a federal judge in Florida ruled the entirety of the legislation unconstitutional.

Senate Minority Leader Mitch McConnell (R-Ky.) started the process last week of bringing a repeal bill to a vote. Although the GOP leader remains optimistic, it's not clear whether Democrats will allow such a vote.