The 9 GOP senators who will decide the fate of the Republican healthcare bill

The GOP healthcare bill faces an uncertain future in the Senate after its introduction this week.

Even though Senate Majority Leader Mitch McConnell wants to vote on the Better Care Reconciliation Act (BCRA) by the end of next week, many Republican senators have not embraced the bill with open arms.

Some more conservative senators want the bill to go further in its repeal of the Affordable Care Act, or Obamacare, and four members released a statement on Thursday saying they would vote against the bill along those lines.

Some moderates, on the other hand, think the bill goes too far and want to keep some of the more popular parts of the ACA intact.

Here are the nine GOP senators likely to shape the fight over the BCRA - and what they might want in terms of changes.