(CNN) – Former Republican presidential nominee Mitt Romney appeared on "The Tonight Show" with Jay Leno on Friday and weighed in on the barrage of controversies plaguing the White House in recent weeks.
The former Massachusetts governor said he's “over” the election but is "not a fan of the president." He said a special counsel should be appointed to investigate the Obama administration and the IRS’ targeting of conservative groups seeking tax-exempt status.
"There are really two concerns with regards to the IRS story. One is they have admitted now that they did target conservative groups for extra scrutiny as those groups were looking to find a tax-except status,” Romney said. “That obviously is a violation of the very fundamental trust that we have that the IRS does not pursue a political agenda.
“The buck stops at the president's desk," he said, and he questioned whether individuals who donated to Republicans or his campaign during the election were targeted specifically by the IRS.
Regarding the Justice Department's subpoena of Associated Press phone records, Romney said it was premature to draw conclusions.
"I think a lot of people are concerned that the First Amendment is being challenged in some way when the Justice Department subpoenas phone records of some 20 different reporters over some period of time. And they're looking for leaks of classified information. And clearly that's something which is alarming to some folks."
Romney repeated attack lines he used on the campaign trail last year over the administration's handling of the September 11, 2012, attack on the U.S. diplomatic post in Benghazi, Libya, which resulted in the deaths of four Americans, including Ambassador Christopher Stevens.
"American people were misled as to what happened," Romney said, referring to discredited talking points UN Ambassador Susan Rice conveyed on television news programs saying that the attack was a spontaneous reaction to an anti-Islam film rather than a premeditated assault.
"That's a real concern,” Romney said, “and the fact is that it's been very difficult to pull out over the ensuing months."
Romney said another concern was that no effort was made to rescue the Americans caught in the attack last year.
Asked if this would hurt a hypothetical presidential campaign in 2016 for former Secretary of State Hillary Clinton, Romney said there would be "careful" scrutiny into her record working for the Obama administration.
Pivoting to the White House, Romney said Obama's "largest legacy of concern or failure" is the ongoing issues in places like North Korea and Iran.
Losing the election was tough, Romney said, but it’s nothing compared to other challenges in life. He pointed to the benefits of spending time with his sons, 22 grandchildren, and his wife Ann, who has been diagnosed with multiple sclerosis.
"This is something you get over pretty quickly," he said of losing the election.
As far as advice for future Republican presidential candidates, Romney said "get used to eating Iowa corndogs" and later added, "sell the horse."