Couer d'Alene, Idaho - Newt Gingrich doled out some verbal hot potatoes during his first visit to Idaho, tweaking rivals Mitt Romney and Rick Santorum but saving his most vicious attacks for President Obama.

"You can imagine the frustration [President Obama] feels all day knowing that he is the one who has been sent here to fundamentally get us to quit being American and wondering why we resist this great opportunity," Gingirch said during his attack on the administration's energy policies.

Staying a self-described "cheerful," Gingrich was nevertheless sharp-edged, slipping into his free-flowing speech some fire-breathing zingers against his opponents.

"One of the lessons of three years of amateurism in Washington is that this is a very tough city to run," Gingirch said, in an oblique attack against frontrunner Mitt Romney. "Hiring another amateur - replacing a liberal amateur with a moderate amateur wont' get you very far, he said. The audience cheered.

After a positively reviewed performance at the CNN debate in Phoenix, Gingrich had some jabs for his rivals, saying he was "a little surprised" by Rick Santorum's response to Mitt Romney.

"It was amazing to me in the debate last night that [Mitt Rommey] was attacking Rick Santorum for some indirect vote that funded Planned Parenthood when in fact Romneycare put by law Planned Parenthood on a board in the Romneycare system and the Romney administration funded an abortion clinic for Planned Parenthood while he was governor," Gingrichs said accusingly. "And I was a little surprised that Rick didn't dive in and point out that...Governor Romney at times is severely distanced from the facts."

Gingrich drew laughs from the audience when he described himself as "cheerful after each candidate was asked to describe themselves with one word at the debate; the candidate said he was confused by Romney's choice, "I wasn't sure what ‘resolute' meant, but it sounded good."

Fielding questions from the audience, Gingrich took his first from a man who called President Clinton a "hippie which turned out to be a pedophile" and President Obama a "disco-dancing coke-head."

"Are you willing to get in there and raise some serious hell and straighten things up?" the man asked.

Ignoring the first part of the question, Gingrich responded, "Well, as Harry Truman said, somebody yelled at him at one point, ‘Give ‘em hell, Harry!' And he said, ‘I just tell the truth and it feels like hell.'"