President Obama is planning a trip to Cuba March 21, which will make him the first sitting U.S. president to set foot in the country for more than 80 years. This news comes 15 months after Obama’s pledge with Raul Castro to reopen diplomatic channels between the U.S. and Cuba after exchanging prisoners. Since the humanitarian release of U.S. contractor Alan Gross in December 2014, the U.S. and Cuba have been through a series of diplomatic talks resulting in the reopening of embassies and a recent commercial airline deal. Calvin Coolidge was the last sitting president to visit Cuba, back in 1928. ABC News reports that the National Security Council will make an official announcement in a White House briefing sometime today.