The White House is confirming that President Barack Obama received a letter from Iranian President Mahmoud Ahmadinejad last month. "Yes, President Ahmadinejad sent a letter to the President in March," National Security Council spokesman Michael Hammer told POLITICO Saturday. "We are not going to get into details on the content of the correspondence at this time." Ahmadinejad discussed sending a letter to Obama in an interview with Iranian state television on Tuesday. “I have written a letter to Obama which will be published soon,” Ahmadinejad said in the television interview, as reported by the IRNA news agency. "I sent him...