 Rosenkranz has testified before the United States Congress as a legal expert, including in front of the Senate Judiciary Committee during the confirmation hearings for Sonia Sotomayor, President Obama's Supreme Court nominee, and Loretta Lynch, Obama's nominee for Attorney General.He also testified before the Oversight & Investigations Subcommittee of the House Financial Services Committee, on the constitutionality of the United States Department of Justice's bank settlement agreements after the 2008 financial crisis, and before the House Judiciary Committee on issues of a President of the United States' duty to "take Care that the Laws be faithfully executed.