Obama: Worst year of his presidency?
US President Barack Obama said there had been some "frustrations" when queried if 2013 was the worst year yet of his time in the nation's top office.
Mr Obama faced the question from a reporter who cited the botched rollout of his embattled healthcare law and resultant low approval ratings as possible causes.
"We have had ups and we have had downs," he said during a press conference on Friday.
"There are areas where there has obviously been some frustrations", he added, citing lack of progress on gun control and immigration.