Sen. Chuck GrassleyChuck GrassleyOvernight Finance: Dems seek probe of acting SEC chief | Defense hawks say they won't back short-term funding | Senate seen as start point for Trump infrastructure plan | Dems want more money for IRS Overnight Regulation: Trump administration lifts Obama freeze on federal coal mining Senators offer bill aimed at helping IRS whistleblowers MORE (R-Iowa) said Tuesday that Canada is "smarter" than the United States because it is developing its energy resources despite climate change concerns.

Grassley was speaking about Canada’s determination to pump crude oil from its tar sands regardless of whether the United States agrees to build the Keystone XL pipeline that would transfer that oil to U.S. refineries along the Gulf Coast.

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“They’re smarter than we are,” Grassley said on the Senate floor. “They’ve made a national decision that they’re going to harvest their nation’s energy resources.”

Senate Majority Leader Harry ReidHarry ReidRepublican failure Senate about to enter 'nuclear option' death spiral Top GOP senator: 'Tragic mistake' if Democrats try to block Gorsuch MORE (D-Nev.) announced Tuesday that he was in talks with Sen. John HoevenJohn HoevenCombating opioid epidemic, repealing ObamaCare will hurt the cause Senate panel considers how to fund Trump’s T infrastructure package A guide to the committees: Senate MORE (R-N.D.) — the author of a bill to congressionally approve the pipeline construction — to allow a vote on his measure as an amendment to an energy efficiency bill expected to hit the floor next week.

Hoeven and several other Republicans came to the Senate floor Tuesday to discuss the benefits of building the pipeline, which the Obama administration has delayed for more than five years. 

“We’re asking quite simply for a vote,” Hoeven said. “It is Congress’s responsibility to take a stand. … As part of [the energy efficiency bill] we’re going to require a vote on Keystone XL pipeline and everybody can decide where they stand.”

Hoeven said that under the foreign commerce clause of the Constitution, Congress has the authority to bypass the administration and approve construction of the pipeline. 

The administration has delayed action because of concerns from environmentalists who worry about the effect a spill and more fossil fuel consumption will have on the environment.

“The president is clearly acquiescing to environmentalists,” Sen. Jeff SessionsJeff SessionsFiorina calls for special prosecutor for Russia probe The Hill's 12:30 Report Dem rep: Sanctuary cities are actually ‘Fourth Amendment cities’ MORE (R-Ala.) said.