Senate leaders are meeting with healthcare holdouts in an effort to reach a deal on partially repealing and replacing Obamacare by the end of the week, but some senators are skeptical they will leave for the July 4 recess with an agreement in hand.

Senate leaders scrapped a planned vote this week on their healthcare bill because it didn’t have enough votes. Several senators said Senate Majority Leader Mitch McConnell wanted to reach a deal on healthcare by the end of the week and have the Senate vote after returning from the week-long recess on July 10.