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 RockefellerWorld Health Day: It's time to fight preventable disease Lobbying World Senate GOP rejects Trump’s call to go big on gun legislation 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 WhitehouseHillicon Valley: Washington preps for Mueller report | Barr to hold Thursday presser | Lawmakers dive into AI ethics | FCC chair moves to block China Mobile | Dem bill targets 'digital divide' | Microsoft denies request for facial recognition tech Dems introduce bill to tackle 'digital divide' Senators press drug industry 'middlemen' over high prices 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 ReidSanders courts GOP voters with 'Medicare for All' plan Glamorization of the filibuster must end Schumer won't rule out killing filibuster 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 McConnellFormer Bush assistant: Mueller report makes Obama look 'just plain bad' 20 years after Columbine, Dems bullish on gun reform Dem says marijuana banking bill will get House vote this spring 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.