In December 1998, President Bill Clinton, appointed Truman Assistant Secretary of the US Treasury for International Affairs.
In 2009, he was recruited by Treasury Secretary Timothy Geithner as a temporary advisor to develop policies for the April 2009 G-20 London summit[4] Currently, he is on the advisory board of OMFIF where he writes various articles regarding the monetary and financial situation.
[5] He has proposed a special, on-time allocation of $250bn in SDRs by donor member countries as a way of dramatically building confidence in co-operative solutions to the global recession and to persuade countries not to manage their exchange rates in order to build up foreign exchange surpluses.
Truman urged that IMF should enforce the coordinated plan, that it should keep a real-time, public scorecard identifying countries which are not doing their part.
[4] Truman has led international advocacy efforts to defend Andreas Georgiou, the former head of the Hellenic Statistical Authority who has been the target of multiple prosecutions and lawsuits.