Mitt Romney, the 2012 Republican presidential nominee, gave an unflinching review Sunday of his unsuccessful campaign, admitting his shortcomings and disappointments but vowing to remain a force in American politics.

“It kills me not to be there, not to be in the White House doing what needs to be done,” Romney told “Fox News Sunday” in his first interview with wife Ann after the election. “It’s hard.”

In the wide-ranging interview, Romney and his wife also talked about everything from campaign missteps to heartbreaking Election night results to how President Obama has led the country so far in his second term.

“The president is out campaigning to the American people, doing rallies around the country, flying around the country and berating Republicans and blaming and pointing,” Romney said. “That causes the Republicans to retrench and to put up a wall and to fight back.”

Romney told Fox that Obama appears to be failing in his handling of the $85 billion in spending cuts this year that automatically kicked in this weekend, in part because he failed to broker a less drastic option between Democrats and Republicans.