Republican presidential candidate Jeb Bush attacked former Secretary of State Hillary Clinton for not taking a position on the Keystone XL pipeline until it was politically expedient.

Clinton was criticized by opponent Martin O’Malley during the Democratic presidential debate for putting “out a lot of reversals on positions on Keystone and many other things.” Clinton then defended her indecision on Keystone XL, and Bush’s campaign used the opening to attack her over the oil pipeline project.

Bush’s campaign put out a video titled “Jeb Beats Hillary Clinton on Keystone” which quotes Hillary’s backpedaling on her Keystone XL indecision during Tuesday night’s debate, then cuts to Bush slamming Clinton over Keystone in the first Republican debate last month.

“You know, we know that if you are learning, you’re gonna change your position,” Clinton said in Tuesday night’s debate. “I never took a position on Keystone until I took a position on Keystone.”

The short video then cuts to Bush bashing Clinton because she “can’t even say if she’s for the XL pipeline even after she’s left, gimme a break.”

The Keystone XL pipeline has been awaiting approval since 2008, and for years it has been opposed by environmentalists who say it will cause oil spills and contribute to global warming. Activists have so far been successful in convincing the Obama administration to delay its decision on the pipeline.

Clinton, however, was Secretary of State while the pipeline was under review by the State Department. She never took a position on the pipeline until last month when she came out against the pipeline — and this came after months of prodding by environmental interests.

“I think it is imperative that we look at the Keystone XL pipeline as what I believe it is: A distraction from the important work we have to do to combat climate change, and, unfortunately from my perspective, one that interferes with our ability to move forward and deal with other issues,” Clinton told a crowd in Iowa last month.

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