On March 23, 2009, the White House announced Koh's nomination as Legal Adviser to the State Department in the Obama administration, the senior legal adviser to Secretary of State Hillary Clinton. His nomination was generally supported in the Senate and among legal colleagues. The nomination drew criticism from some conservative commentators for his views on international law and its use in American legal analysis and jurisprudence, while drawing support from other conservatives such as Ted Olson and Kenneth Starr as well as Forbes magazine.