WASHINGTON - President Barack Obama says it's a "bittersweet" day as he and Michelle Obama welcome the Italian prime minster for the last official visit and state dinner of the Obama presidency.

On a clear, fall day, the president says he and the first lady "saved the best for last" in welcoming Italian prime minister Matteo Renzi and wife, Mrs. Agnese Landini, on Tuesday.

As for this being the last official visit of his presidency, a smiling Obama adds, "it's OK."

Renzi, for his part, says the visit is a chance to pay tribute to the enduring friendship between the U.S. and Italy.

The two leaders had plenty of kind words for each other.

Renzi told Obama: "We think history will be kind with you, Mr. President."