WASHINGTON (AP) — President Barack Obama and first lady Michelle Obama reported assets worth between $1.8 million and $7 million for last year, little changed from their previous year's holdings, according to financial disclosure forms released Thursday. “The Audacity of Hope,” from 2006, earned between $15,001 and $50,000, and “Of Thee I Sing: A Letter to My Daughters,” released in 2010, earned between $5,001 and $15,000. The forms show the largest jointly owned assets by the president and the first lady were Treasury notes worth between $1 million and $5 million. The forms only require the Obamas to list their assets and income in wide ranges, leaving it difficult to discern the exact amount of the couple’s worth in 2013. The $50,000 came from an award Biden received from the Pennsylvania Society, which honored Biden last year with its gold medal for distinguished achievement, 
 
 Last month, the Obamas released their 2013 tax returns and reported paying $98,169 in taxes on $481,098 in adjusted income. The Bidens reported paying $96,378 in federal taxes last year on adjusted gross income of $407,009.
– Barack Obama may not be Mitt-Romney-rich (or even Al-Gore-rich), but he's doing all right for himself. The president's latest financial disclosure forms, released yesterday, reveal that he and Michelle had total assets worth somewhere between $1.8 million and $7 million in 2013, the AP reports. (That's just like 2012.) Most of that is in US Treasury notes, which are worth between $1 million and $5 million. Other assets include Vanguard retirement funds and college saving funds. Current financial disclosure rules only require politicians to list their assets within a broad range, so it's hard to pin down exactly how much Obama has, the New York Times explains. Besides his presidential salary, Obama makes most of his money off royalties from his books, though the market seems to believe he peaked as a writer in the '90s. His latest, 2010's Of Thee I Sing, A Letter to My Daughters, earned between $5,001 and $15,000, compared to $50,001-$100,000 for 1995's Dreams From My Father. But even Of Thee's numbers probably sound good to Joe Biden, who made less than $201 in royalties last year off of his 2007 book Promises to Keep.