The chamber faces a swiftly approaching deadline before the United States defaults on its debt for the first time in history, with Senate Majority Leader Chuck Schumer (D-NY) saying on Wednesday that the Senate would “move quickly” to pass the bill and send it to Biden’s desk.

However, Senate leadership is likely to consider several amendments to the debt ceiling compromise that senators file in opposition to certain provisions, which could put off raising the debt ceiling for a while longer. Here are five things to monitor while lawmakers debate over raising the debt limit.