Mr Brooks had been a self-made man, raised on a hardscrabble tobacco farm in South Carolina.
But both Mr Brooks's subtle approach and Mr Gingrich's unsubtle one suffer from a shared weakness.
Which leads on to Mr Brooks's most controversial finding: in America, conservatives are happier than liberals.
Voters particularly dislike the way the state is using their money to reward deadbeats, says Mr Brooks.
This is for two reasons, argues Mr Brooks, an economist at Syracuse University.
Mr Brooks, who was with Mr Lawrence on the night of the attack, had wept while giving evidence at the trial.
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If people on the factory floor or in workshops are provided with easy-to-use robots they can become more productive, says Mr Brooks.
Emphasising victimhood was noble during the 1950s and 1960s, says Mr Brooks.
Mr Brooks's lips are sealed about what these machines will be like, although his views about the future of robotics provides a clue.
Even when rich Americans stick with the Republicans as most still do the richest congressional districts produce some of the only remaining moderate Republicans, says Mr Brooks.
"Mr Brooks has bought the modernisation creed, which is very much in favour of the idea that there is a powerful technocratic elite, " he said.
"We believe that urgent changes are needed to the LHA and in particular for the publication of maximum rent levels to be ended, " said Mr Brooks.
"We could offer new hope to the millions of American manufacturers who are looking for innovative ways to compete in our global economy, " said Mr Brooks.
They are also more likely to have children, which makes Mr Brooks confident that the next generation will be at least as happy as the current one.
For Latin America, Mr Brooks and his colleague, Alberto Ramos, conclude that Peru is the country that has been trying the hardest to prevent its currency from rising.
Mr Brooks proposes that whatever their respective merits, the conservative world view is more conducive to happiness than the liberal one (in the American sense of both words).
Mr Brooks believes that in the drive to eradicate racism from the force, what once might have been called racist is now labelled "poor training" or blamed on ignorant officers.
Mr Brooks considers entrepreneurship central to American culture, maybe literally a part of its DNA (thanks to all of those immigrants importing the gene that makes you get up and go).
To save capitalism in the years to come Mr Brooks wants to persuade Americans all over again that a free-enterprise system is not only more efficient than socialism but morally superior as well.
The BBC's June Kelly said the developments were likely to be "highly embarrassing" for Mr Cameron who attended Eton College with Mr Brooks and was a friend of both the racehorse trainer and his wife.
BBC: Rebekah Brooks anger over charges in phone-hacking probe
Mr Brooks and Fiona Lake, one of his colleagues, have looked at annual foreign-exchange interventions by central banks in emerging Asian economies, tracking the pace at which they built up reserves by buying foreign currency.
At the time, Ms. Brooks's spokesman said the bag belonged to Mr. Brooks.
WSJ: U.K. Police Arrest Rebekah Brooks, Husband in Phone-Hacking Probe
"I got a lump in my throat when I heard that, " says Mr. Brooks.
Mr. Brooks says he likes the car, but doesn't expect to buy it when the lease is done.
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Mr. Brooks is president of the American Enterprise Institute and author of "The Road to Freedom" (Basic Books, 2012).
Last summer, shortly after the phone-hacking scandal boiled over, Mr. Brooks was connected to an incident that briefly grabbed headlines.
WSJ: U.K. Police Arrest Rebekah Brooks, Husband in Phone-Hacking Probe
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