A papal visit to Washington next year — including a possible address to Congress — could be in the works.  

Although the Vatican has not confirmed or denied any official travel plans, Pope Francis told reporters accompanying him on a flight home from South Korea that he’s weighing U.S. stops in Washington, Philadelphia and New York City in 2015. 
“Next year I would like to go to Philadelphia, for the [World Meeting of Families],” the pontiff said, according to the Wall Street Journal

. “Then, I have been invited by the president of the United States to the American Congress. And also the secretary-general of the United Nations has also invited me to the Secretariat of the U.N. in New York. So maybe the three cities together.”
    
House Speaker John A. Boehner, R-Ohio, earlier this year invited the pope to address a joint session of Congress. The Vatican reported Tuesday the pope is mourning the deaths of three of his relatives — the wife and two young children of the pontiff’s 38-year-old nephew — killed in a car crash in Argentina.