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Green Party presidential candidate Jill Stein will face charges after she allegedly vandalized equipment at a construction site in North Dakota, the Bismarck Tribune reported A spokesperson for Stein told the Associated Press that the candidate wrote "I approve this message" in red spray paint on the blade of a bulldozer while she took part in a protest at a Dakota Access Pipeline construction site Tuesday.According to the Tribune, Morton County Sheriff Kyle Kirchmeier told reporters that his office is "working up the information through the state's attorney's office to pursue charges" against Stein, which will likely include trespassing and vandalism.The AP reported that the Standing Rock Sioux Tribe is trying to halt the construction of a section of the pipeline that tribal leaders say would violate land they hold sacred.During a protest on Saturday, three private security guards working for the Dakota Access Pipeline were injured after approximately 300 protesters entered the work site, the Tribune reported.