Senate Environment and Public Works Committee Chairwoman Barbara BoxerBarbara BoxerCarly Fiorina 'certainly looking at' Virginia Senate run Top Obama adviser signs with Hollywood talent agency: report 
Democrats vie for chance to take on Trump as California governor MORE (D-Calif.) and ranking member David VitterDavid VitterMercury brings on former Sen. Vitter, two others Lobbying World Bottom Line MORE (R-La.) introduced the Water Resources Development Act (WRDA). S. 601 would authorize Army Corp of Engineer projects related to flood and storm risk reduction, coast and inland navigation, and ecosystem restoration.

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The Senate rejected an amendment from Sen. John BarrassoJohn BarrassoBig Pharma must address high drug prices A guide to the committees: Senate Making transportation public-private partnerships available in rural America MORE (R-Wyo.) that would have stopped the Environmental Protection Agency (EPA) from expanding what can be identified as waters protected under the Clean Water Act. His amendment failed on a 52-44 vote — there was a 60-vote threshold for final passage.

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Barrasso said his amendment would have protected farmers and ranchers from the EPA, which has said it is considering holding more U.S. water bodies to higher standards under the Clean Water Act. He said the administration’s decision to expand waters to areas of farms would "have a huge impact on farmers and ranchers.”

Boxer urged her colleagues to vote against Barrasso’s amendment, calling it “an anti-environmental rider” to her bill.

“Without protections dangerous pollutants could be put into our water ways,” Boxer said ahead of the vote. “The Barrasso amendment is such an overreach that we will keep the state of U.S. waters in chaos. … Without these protections our drinking water would be at risk.”

An amendment from Sen. Bernie SandersBernie SandersDeVos: 'My job isn’t to win a popularity contest with the media' DNC candidate Harrison drops out, backs Perez for chairman The Hill's 12:30 Report MORE (I-Vt.) was also held to a 60-vote threshold. His amendment would have allowed FEMA to fund stronger restoration standards for culverts and bridges in Vermont that were damaged by natural disasters. He said the goal was to prevent the structures from being damaged again. His amendment failed on a 56-40 vote.

Republican Sens. Thad CochranThad CochranA guide to the committees: Senate Mulvaney sworn in as White House budget chief Senate confirms Mulvaney to be Trump’s budget chief MORE (Miss.), Roger WickerRoger WickerA guide to the committees: Senate Pruitt confirmation sets stage for Trump EPA assault Price huddles with Senate GOP on ObamaCare MORE (Miss.), David Vitter (La.) and Susan CollinsSusan CollinsGOP senator won't vote to defund Planned Parenthood GOP senator grilled over DeVos vote during town hall GOP senator: Flynn should testify on Russia MORE (Maine) voted with Democrats for the Sanders amendment.

Sen. Tom CoburnTom CoburnCoburn: Trump's tweets aren't presidential The road ahead for America’s highways Rethinking taxation MORE (R-Okla.) said Sanders' amendment was "essentially an earmark" for his state.

The Senate accepted an amendment from Sen. James InhofeJames InhofeA guide to the committees: Senate GOP considers ways to ‘modernize’ endangered species law GOP bill would eliminate Consumer Financial Protection Bureau MORE (R-Okla.) addressing federal land use in Oklahoma. His amendment passed by voice-vote.

Earlier Tuesday, the Senate approved 20 minor amendments en bloc.