Eight of the 18 non-incumbent Democrats running for Senate surveyed by The Hill either steadfastly support the pipeline or oppose it outright, breaking with Obama’s decision to reserve judgment on the project until federal regulators conduct a full review…

Warren is one of five non-incumbent Democrats running for Senate that are on the record as opposing the pipeline, according to a review by The Hill.

Three Democratic candidates support the pipeline, including Heidi Heitkamp, who is hoping to replace retiring Sen. Kent Conrad (D-N.D.). Heitkamp blasted Obama in January for rejecting the cross-border permit for the pipeline, which would run through North Dakota.

But not all the candidates have staked out a clear position on the pipeline. Six of the candidates, including the Independent Angus King of Maine, stand firmly behind Obama’s stance that the project needs a full review before a decision can be made.