The US leader was quick to contact Renzi yesterday, who was formerly sworn in on Saturday at the head of a 16 party coalition after Italy's latest political crisis.
"The President expressed support for Prime Minister Renzi's leadership on creating economic growth and jobs, and he looks forward to continued close US-Italian partnership on Afghanistan, Libya, the Transatlantic Trade and Investment Partnership, and security and defence cooperation," the White House said in a statement.
Obama is due to travel to Rome next month to meet Pope Francis on a trip which also includes stops in the Netherlands, Belgium and Saudi Arabia.