President Barack Obama has arrived in Cuba, becoming the first American president to visit the island nation in almost 90 years while still in office. Moments after the president’s plane landed at Jose Marti airport in Havana in the rain, he sent a Tweet that said “Que bol Cuba? Just touched down here, looking forward to meeting and hearing directly from the Cuban people.” “Que bol?” is an informal Cuban expression that means “How are you?” At the airport, American and Cuban officials met Obama. CNN reported that some of the Cuban officials who greeted Mr. Obama had been forced to leave the United States after being accused of spying for Cuba. Cuban President Raul Castro did not welcome President Obama at the airport. Michelle Obama and their two daughters joined the president for the three-day-visit. The president says the trip will be a new beginning in the relationship between the former Cold War enemies. At the State Department last week, he said “diplomacy -- including having the courage to turn a page on the failed policies of the past -- is how we’ve begun a new chapter of engagement with the people of Cuba.”