President Obama and the first lady greet Canadian Prime Minister Justin Trudeau and Sophie Gregoire-Trudeau before a state dinner at the White House.
Trudeau, 44, the left-leaning Liberal Party leader and son of former Prime Minister Pierre Trudeau, took power last November. He already enjoys a closer bond with the Democratic president than his right-of-center predecessor, Stephen Harper of the Conservatives, managed in more than six years of dealing with the Obama administration.
President Obama and first lady Michelle Obama welcome Canada's Prime Minister Justin Trudeau and his wife Sophie Gregoire-Trudeau as they arrive for a state dinner at the White House.
"He campaigned on a message of hope and of change. His positive and optimistic vision is inspiring young people," Obama said after meeting with Trudeau in the Oval Office.
"So, from my perspective, what's not to like?" he added, also noting Trudeau's commitment to the environment.
First lady Michelle Obama and Sophie Grégoire Trudeau walk through the White House as they follow their husbands to the State Dinner.
President Obama speaks during the State Dinner.
Keeping good relations with the United States is critical for Canada, which sends 75 percent of its exports to its southern neighbor.
Canada's Prime Minister Justin Trudeau toasts President Obama.
Obama struck a warm, informal tone from the start and told Trudeau at a state dinner he "may well be the most popular Canadian named Justin." Singer Justin Bieber is from Canada.