President Obama and Vice President Biden released their tax returns today, ahead of Tax Day, which is on April 16 this year (since April 15 falls on a Sunday). According to the White House, "Together, [the Bidens] reported adjusted gross income of $379,035. The Bidens paid $87,900 in total federal tax for 2011. They paid $13,843 in Delaware income tax and $3,614 in Virginia income tax. The Bidens contributed $5,540 to charity in 2011." In other words, the Bidens donated less than 1.5 percent of their adjusted gross income to charity. The president and his family were more charitable, giving...