The one Brooks is using is here:
http://people-press.org/reports/display.php3?ReportID=242Where it defines:
"PRO-GOVERNMENT CONSERVATIVES
PAST TYPOLOGY COUNTERPART: Populist Republicans
9% OF ADULT POPULATION
BASIC DESCRIPTION: Pro-Government Conservatives stand out for their strong religious faith and conservative views on many moral issues. They also express broad support for a social safety net, which sets them apart from other GOP groups. Pro-Government Conservatives are skeptical about the effectiveness of the marketplace, favoring government regulation to protect the public interest and government assistance for the needy. They supported George W. Bush by roughly five-to-one.
DEFINING VALUES: Religious, financially insecure, and favorable toward government programs. Support the Iraq war and an assertive foreign policy, but less uniformly so than Enterprisers or Social Conservatives. Back government involvement in a wide range of policy areas, from poverty assistance to protecting morality and regulating industry."
and
"DISADVANTAGED DEMOCRATS
PAST TYPOLOGY COUNTERPART: Partisan Poor
10% OF GENERAL POPULATION
BASIC DESCRIPTION: Least financially secure of all the groups, these voters are very anti-business, and strong supporters of government efforts to help the needy. Minorities account for a significant proportion of this group; nearly a third (32%) are black, roughly the same proportion as among Conservative Democrats. Levels of disapproval of George W. Bush job performance (91%) and candidate choice in 2004 (82% for Kerry) are comparable to those among Liberals.
DEFINING VALUES: Most likely to be skeptical of an individual's ability to succeed without impediments and most anti-business. Strong belief that government should do more to help the poor, yet most are disenchanted with government. Strongly supportive of organized labor (71% have a favorable view of labor unions)."
and says:
"Pro-Government Conservatives and Disadvantaged Democrats have similar socioeconomic backgrounds and confront many of the same financial struggles. Both groups are predominantly female, both are relatively poor, and large majorities in both groups express dissatisfaction with their financial circumstances.
But these groups have strikingly different outlooks on their lives and possibilities that go a long way toward explaining the differences in their political attitudes. Feelings about the power of the individual are a major factor in this division. Pro-Government Conservatives are defined, at least in part, by their optimism in this area. About three-quarters (76%) believe that most people can get ahead if they are willing to work hard and two-thirds (66%) strongly express that view. An even higher percentage of Pro-Government Conservatives (81%) say that everyone has it in his or her own power to succeed.
Disadvantaged Democrats have a gloomier outlook. Just 14% think that people can get ahead by working hard; 79% say that hard work is no guarantee of success, and 76% express that view strongly. Only 44% of Disadvantaged Democrats say that everyone has the power to succeed, while slightly more (47%) take the fatalistic view that success in life is determined by forces outside one's own control. "
So, the figures are there - but Brooks is being disingenuous in descrbing both groups as "poor". The survey clearly says the DD group is the least financially secure.