President Bush nominated Warsh and Randall Kroszner to fill two Fed vacancies on January 27, 2006. Warsh's nomination drew some criticism, based on his age and inexperience. At 35 years old, Warsh was the youngest appointment in the history of the Federal Reserve. At the time, former Fed vice chairman and Reagan appointee Preston Martin said Warsh's nomination was "not a good idea" and that if he had a voice in the Senate, he would vote no. Ben Bernanke wrote "His youth generated some criticism, including from former Board vice chairman Preston Martin, but Kevin's political and markets savvy and many contacts on Wall Street would prove to be invaluable." In his confirmation documents, Warsh listed two published writings - "Deciding to Run for Congress: An Opportunity Cost Model with Partisan Implications" and "Corporate Spinoffs and Mass Tort Liability."