Rockefeller is expected to continue to allow amendments to be submitted this week and possibly into next week before finalizing an agreement with Republicans on which amendments will come up for a vote.

Democrats allowed two healthcare amendments to the FAA bill yesterday; one to repeal the healthcare law was rejected, but one to end an IRS tax reporting requirement was accepted. Still, the Senate may still have to decide whether to consider other healthcare amendments to the FAA bill.

Sen. Bill NelsonClarence (Bill) William NelsonPoll: 8 in 10 people in key states concerned about driverless cars Ted Cruz and Bill Nelson give NASA a reality check on privatizing International Space Station Overnight Defense: Senate confirms Haspel as CIA chief | Trump offers Kim 'protections' if he gives up nukes | Dem amendments target Trump military parade MORE (D-Fla.) has proposed an amendment to the FAA bill that is a sense of Congress asking the Supreme Court to decide on whether the healthcare law is constitutional. Yesterday, Nelson said a prompt Supreme Court decision would help prevent Congress from continuing to fight about the law.

Also related to healthcare, Sens. Sherrod BrownSherrod Campbell BrownSenate Dems to Mnuchin: Don't index capital gains to inflation Trump on collision course with Congress on ZTE Pa. health secretary: 'Sustainable funding' needed to attack opioid crisis MORE (D-Ohio) and Debbie StabenowDeborah (Debbie) Ann StabenowSenate Dems to Mnuchin: Don't index capital gains to inflation This week: House GOP regroups after farm bill failure The Hill's Morning Report - Sponsored by CVS Health - A pivotal day for House Republicans on immigration MORE (D-Mich.) are proposing an amendment that would extend a health insurance tax credit under the Trade Adjustment Assistance program.

Other amendment proposals have nothing to do with either the FAA or healthcare. One from Sen. David VitterDavid Bruce VitterSenate panel advances Trump nominee who wouldn't say if Brown v. Board of Education was decided correctly Planned Parenthood targets judicial nominee over abortion comments Trump nominates wife of ex-Louisiana senator to be federal judge MORE (R-La.) would require the U.S. government to prioritize old age, survivors' and disability pay through the Social Security Administration in the event that the government reaches its debt limit later this year. This is similar to an amendment from Sen. Pat Toomey (R-Pa.) that would ensure that government payments on interest on U.S. debt takes priority in the event that the U.S. reaches its debt limit.

Each of these amendments indicate that a decision to extend the U.S. debt limit may be difficult to reach, as several Republicans are arguing that the U.S. should cut government spending rather than raise the debt ceiling.

Several pending amendments are FAA-related and could be taken up next week. One from Sens. Ben Nelson (D-Neb.) and Charles SchumerCharles (Chuck) Ellis SchumerOvernight Finance: White House planning new tax cut proposal this summer | Schumer wants Congress to block reported ZTE deal | Tech scrambles to comply with new data rules OPEC and Russia may raise oil output under pressure from Trump The Hill's 12:30 Report — Sponsored by Delta Air Lines — GOP centrists in striking distance of immigration vote MORE (D-N.Y.) would require criminal penalties to be applied to anyone who makes an unauthorized recording of security screening images or distributes those images. This is an apparent reaction to some passenger complaints that security images have been distributed.

Another from Sen. Jerry MoranGerald (Jerry) MoranTrump on collision course with Congress on ZTE Republicans think Trump is losing trade war Senators demand answers on Trump’s ZTE deal MORE (R-Kan.) would require the secretary of Defense to report on any unfair competitive advantage that might have existed in the context of contract awards for the KC-X aerial refueling program. One amendment from Sen. John Ensign (R-Nev.) would expand direct flight service to Reagan National Airport.

Sen. James InhofeJames (Jim) Mountain InhofeFive takeaways on the canceled Trump summit with Kim Senate panel unanimously approves water infrastructure bill Defense bill moves forward with lawmakers thinking about McCain MORE (R-Okla.) has proposed an amendment that would limit the legal liability of volunteer pilots, such as those that fly for humanitarian or emergency purposes. One from Sen. Roger WickerRoger Frederick WickerSenate panel unanimously approves water infrastructure bill Trump endorses Arkansas governor's reelection bid ahead of primary Senate GOP urges Trump administration to work closely with Congress on NAFTA MORE (R-Miss.), who spoke on the floor today about his amendment, would deny Transportation Security Administration employees collective bargaining rights.

Sen. John McCainJohn Sidney McCainTo woo black voters in Georgia, Dems need to change their course of action Senate panel again looks to force Trump’s hand on cyber warfare strategy Senate panel advances 6B defense policy bill MORE (R-Ariz.) would real the essential air service program, which subsidizes air service in smaller communities and costs about $200 million per year.