Article Photos: Obama plunges into campaign, tears into Romney

President Barack Obama speaks to students and parents at Washington-Lee High School in Arlington, Va., Friday, May 4, 2012, about his efforts to prevent interest rates from doubling on federal student loans. (AP Photo/J. Scott Applewhite)

President Barack Obama speaks to students and parents at Washington-Lee High School in Arlington, Va., Friday, May 4, 2012, about his efforts to prevent interest rates from doubling on federal student loans. (AP Photo/J. Scott Applewhite)