Republican Sen. Mike Rounds of South Dakota went on NBC's Meet the Press Sundayand defended embattled EPA administrator Scott Pruitt."We'll nitpick little things," Rounds said. "He has too many people on his security detail. It may add up to more than what the previous guy did. ... We said we had to have regulatory reform. We've got it. Scott Pruitt is a big part of that. He's executing what the president wants him to execute."On a host of issues, Republicans seem to be struggling with how to respond in the age of Trump — whether it's about Pruitt and ethics or the president and questions about his personal behavior. (Think about evangelicals' responseto allegations of President Trump's marital infidelity — or previous allegations of sexual assault and misconduct).But ethics officials in government are starting to speak out and raise red flags. The Office of Government Ethics on Monday issued a strongly worded letter (full letter at the bottom of this post) that lays out its case for why ethics matter."Public trust demands that all employees act in the public's interest, and free from any actual or perceived conflicts when fulfilling governmental responsibilities entrusted to them," writes David Apol, acting director and general counsel of the office.What's more, Apol points out, Pruitt is not just any "employee" who has to be held to this standard."Agency heads in particular bear a heightened responsibility," he notes. That's because, according to the Code of Federal Regulations, agency heads are literally "required to 'exercise personal leadership in ... establishing and maintaining an effective agency ethics program and fostering an ethical culture in the agency.'"Not only that, but the statute lays out the expectationthat agency heads "enforce" ethics rules in their agencies and consider them in "evaluating the performance of senior executives."Reports about Pruitt's potential ethical issues are wide-ranging. They include requesting a large security detail (even when on personal travel to Disneyland ); flying first class on the taxpayers' dime (while flying coach when he's flying on his own); a $50-a-night deal to rent a room in a condo owned by the wife of a lobbyist; pay raises provided to aides close to him after the White House apparently rejected the hikes; using an EPA staffer to help him search for housing on weekends; and removing the head of his security detail who objected to using sirens to get Pruitt through traffic in a non-emergency situation.The actions "do raise concerns about whether the Administrator is using public office for personal gain in violation of ethics rules" and "raise concerns about whether the Administrator misused his position," Apol writes.If it's true that Pruitt retaliated against staff for doing their jobs, then, Apol says, "it is hard to imagine any action that could more effectively undermine an agency's integrity than punishing or marginalizing employees who strive to ensure compliance with the laws and regulations that safeguard that integrity."And yet, Republicans like Sen. Rounds dismiss the ethics complaints as "nitpicking." And even as White House says it is reviewing the allegations, President Trump has already sought to minimize them.In a weekend tweet Trump echoed Pruitt's claims that the extra security spending was the result of "death threats because of his bold actions at EPA", declared the travel expenses "OK", the questionable rental arrangement as "about market rate", and said, "Scott is doing a great job!" The defense of Pruitt comes even though the president and Republican leaders could surely find another conservative who could be as effective at rolling back the regulations at the department that they so desire.One of the rules of politics is that people rarely act when their jobs aren't at stake. But Republicans have been punished for ethical lapses in the past.After the 2006 election, for example, the last time the GOP had control of both chambers of Congress, Republicans lost the House and Senate. The spiraling Iraq civil war was the principal reason, but ethics scandals played a not-insignificant role, too.As the Washington Postnoted the day after Election Day 2006: