U.S. President Barack Obama received Pope Francis in Washington. He praised the Pontiff for his "invaluable support" in reestablishing diplomatic relations with Cuba. The Pope, in turn, lauded Obama for his efforts to combat climate change. Later today the Pope will participate in the ceremony for the canonization of Junipero Serra. Tomorrow, the Pontiff will address a joint session of Congress, the first time a pope has ever done so. Bianca Perez reports from Washington. teleSUR