Republicans won the first skirmish in the Obamacare fight Wednesday, voting to begin debating fast-track budget procedures that, if successful, would allow the GOP to kill the 2010 health care law without having to face a Democratic filibuster in the Senate. The 51-48 vote, on the second day of the 115th Congress, underscores how serious Republicans are in making good on their repeal pledge. But it also signaled that Democrats are just as committed to defending the Affordable Care Act.

. . .