Colorado’s four Democratic candidates for attorney general clashed sharply Thursday night in a debate that repeatedly returned to one theme — whether the state’s top lawyer should be a courtroom veteran or a political fighter. The contenders additionally sparred over Trump lawsuits, water battles and the commutation of Tina Peters’ sentence, with fundraising frontrunner Secretary of State Jena Griswold drawing much of the scrutiny. The debate was sponsored by the Denver Gazette, Colorado Politics, and the Common Sense Institute. Hetal Doshi, a former deputy attorney general at the U.S. Department of Justice under the Biden administration, told the audience at the PACE Center that her career has been largely devoted to public service. That includes, she said, seven years as an assistant U.S. attorney in Colorado, where she prosecuted environmental crimes, corporate fraud and government waste. She said that background gives her the experience needed to ensure Colorado has a strong attorney general.…