Politico reporter Kendra Marr was forced to resign her position this week after New York Times writer Susan Stellin alerted Marr’s editors to similarities between her transportation policy story published Sept. 26 and Marr’s story published Oct. 10. An investigation by Politico into Marr’s work found seven instances of likely plagiarism. Regret the Error points out that Politico should call Marr’s stories what they are: serious plagiarism.