The second, from Sen. Jim Webb (D-Va.), would establish the National Criminal Justice Commission. Both amendments need 60 votes for passage.

At 2 p.m., the Senate will vote on four additional amendments from:

Sen. Jeff MerkleyJeffrey (Jeff) Alan MerkleySenate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Overnight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill MORE (D-Ore.), to prohibit spending on rail projects unless the raw materials are U.S.-sourced;

Sen. Sherrod BrownSherrod Campbell Brown'Hillbilly Elegy' author won't run for Senate Brown, Portman urge Trump administration to move quickly on a steel decision Dems call on DeVos to work with CFPB to protect student borrowers MORE (D-Ohio), to boost Housing and Urban Development funding by about $7 million;

Sen. Jerry MoranGerald (Jerry) MoranIT modernization measure included in Senate-approved defense policy bill Campaign video touts apprenticeships making Trump commemorative coins Senate approves Trump's debt deal with Democrats MORE (R-Kan.), to ensure $8 million is used for the Watershed Protection and Flood Prevention Act; and

Sen. Chuck GrassleyCharles (Chuck) Ernest GrassleyGrassley: 'Good chance' Senate panel will consider bills to protect Mueller Overnight Finance: CBO to release limited analysis of ObamaCare repeal bill | DOJ investigates Equifax stock sales | House weighs tougher rules for banks dealing with North Korea GOP state lawmakers meet to plan possible constitutional convention MORE (R-Iowa), to require an audit of grants awarded by the attorney general, an amendment aimed at increasing accountability following the failed "Fast and Furious" gun-tracking program implemented by the Justice Department.

Several amendments are still in order, but many are likely to be denied a vote as the Senate races to complete work on the spending bill, H.R. 2112, by the end of this week.

Before work on amendments, the Senate will vote at noon on the nomination of Heather Higginbottom to be deputy director for the Office of Management and Budget.