Democrats argued that Davis-Bacon saves money in the long term by preventing "low-ball" contractors from underbidding on contracts and building unsafe infrastructure. Senate Commerce Committee Chairman Jay RockefellerJohn (Jay) Davison RockefellerSenate GOP rejects Trump’s call to go big on gun legislation Overnight Tech: Trump nominates Dem to FCC | Facebook pulls suspected baseball gunman's pages | Uber board member resigns after sexist comment Trump nominates former FCC Dem for another term MORE (D-W.Va.), who is managing the FAA authorization bill, argued that the current law simply requires wages that are comparable to others in the region, and does not necessarily increase wage rates.

The Senate tonight also approved an amendment to the FAA bill from Sen. Sheldon WhitehouseSheldon WhitehouseLive coverage: FBI chief, Justice IG testify on critical report GAO to look into Trump's reduction of carbon social costs Overnight Energy: Pruitt used security detail to run errands | Dems want probe into Pruitt's Chick-fil-A dealings | Yellowstone superintendent says he was forced out MORE (D-R.I.) that would allow fines and prison terms to be imposed on anyone who aims a laser pointer at aircraft. This was a non-controversial amendment and passed easily in a 96-1 vote. Only Paul voted against the Whitehouse amendment.

The Senate is slowly getting to a backlog of more than two dozen amendments to the FAA bill. Senate Majority Leader Harry ReidHarry Mason ReidAmendments fuel resentments within Senate GOP Donald Trump is delivering on his promises and voters are noticing Danny Tarkanian wins Nevada GOP congressional primary MORE (D-Nev.) said tonight that the Senate would continue working on amendments and hopes to finish early in the week of Feb. 14.

Reid also said only those amendments directly related to the FAA would be considered, and said more votes can be expected Monday night and Tuesday morning. After that, Senate Democrats have a retreat scheduled that will take up the rest of next week.

Senate Minority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellPolitical figures pay tribute to Charles Krauthammer Charles Krauthammer dies at the age of 68 Overnight Energy: EPA declines to write new rule for toxic spills | Senate blocks move to stop Obama water rule | EPA bought 'tactical' pants and polos MORE (R-Ky.) praised Reid's handling of the FAA bill so far, and said it is being handled the way bills were handled "in the old days." Democrats have said they would consider amendments in pairs, one from Democrats, and one from Republicans.

Reid said the votes on the two amendments tonight are the last votes of the week in the Senate.