California Governor Gavin Newsom said he would not run for president in 2028 if former Vice President Kamala Harris decides to run again. Newsom made the statement during a CNN interview that aired on Monday evening. He explained that running against Harris, a fellow California Democrat who previously served as the state’s attorney general and later as a U.S. Senator, would be politically unwise. Newsom described the situation as a kind of "mutual assured destruction," meaning that both candidates would likely hurt each other’s chances, and he said it would “service no greater good.” Newsom emphasized that he would not run against Harris if she decided to seek the presidency again. “Why would I do this if I wasn’t trying to serve some greater good? There would be no upside whatsoever,” he said. While Newsom has never previously run for president, he acknowledged that one potential argument against Harris running again would be that she had already had a chance to seek the presidency in 2020 and 2024. He admitted that argument is “objectively true,” but he also noted that the overlap between their supporter bases is too significant. “I know her base of supporters, I know her friends,” Newsom said, explaining that he would not want to run against someone he respects and has worked with closely. He added that he would not want to “do that to people.” Harris’ office did not immediately respond to a request for comment on Newsom’s remarks. Similarly, Newsom’s office did not provide additional comments on his statements to CNN.