If it’s sink or swim on Obamacare repeal, Republicans are treading water right now.

House Speaker Paul Ryan insisted this week that the repeal-and-replace effort is on track, telling lawmakers that that plan is to mark up a measure in committee next month. But as Congress prepares to depart for a weeklong recess, no final decisions have been made about how to handle the stickiest problems of repealing and replacing the Affordable Care Act.