The House Oversight Committee has asked the Office of Government Ethics to investigate White House Counselor Kellyanne Conway’s endorsement of Ivanka Trump’s clothing line on national television, writing in a letter Thursday: “Conway’s statements appear to violate federal ethics regulations.” “Conway’s comments clearly violate the ethical principles for federal employees and are unacceptable,” Rep. Jason Chaffetz, the Republican chairman of the Oversight Committee, and Rep. Elijah Cummings, the committee’s top Democrat, wrote in their letter to the Office of Government Ethics.