Arizona's John McCain was one of three Republican senators to vote against tonight's "skinny repeal" of Obamacare, sinking the bill.

In a bit of high drama, it appeared McCain was all set to vote in favor of the bill in the minutes leading up to a vote.

But as the Senate paused before beginning the procedure, it became evident something else was happening, centered around the Arizona senator who derided the Senate's process earlier this week.

Several Republicans appeared to try to sway McCain back toward a "yes" vote, but he, Maine Sen. Susan Collins and Alaska Sen. Lisa Murkowski provided the crucial votes to defeat the current iteration of the bill.