Jacob "Jack" Lew's signature, on the 2012 "Mid-Session Review" of the federal budget. He was director of the Office of Management and Budget at the time. WhiteHouse.gov hide caption itoggle caption WhiteHouse.gov The Two-Way Signature? Doodle? Check How A Treasury Secretary Lew Might Sign Your Dollars January 9, 2013 The man said to be President Obama's choice to be the next Treasury secretary has a very loopy, quite unusual signature. If he's confirmed, his John Hancock goes on U.S. currency. See what that might look like.