This is about one important issue - who is representing the extreme, irresponsible, unaffordable policy to enrich the richest even more when they're already getting far more than 'their share' of wealth - 80% of new wealth from growth in the US the last 25 years has gone to the top 1% - and who is representing the public interest.
i don't have from 1985 and 2010, but i do have data for 1983, 1989, and 2007. note that 2007 was before the stock market plunged and the housing bubble burst.
from the data i have, the top 1% as of 2007 (34.6%) was up a bit over 1983 (33.8%), but down a lot from 1989 (37.4%). and they were fairly flat through the 2000s (2001 - 33.4%, 2004 34.3%).
where the wealth actually went was to the 4% right behind them, from 22.3% (1983) to 27.3% (2007). the 80s and 90s were flat for this group (the 21 and 22 percent range through 1998), but the 2000s they did well: 2001 - 25.8%, 2004 - 24.6%, and 2007 27.3%.
source:
http://www.levyinstitute.org/publications/?docid=1235
now, he has a prelim update for 2009 based on the fall of the stock market and reports on home value from realtors. however, as of now the s&p 500 is well away from its bottom at the start of 2009 (though still down ~17% from 3 years ago) [this factor increases wealth distribution inquality as shares are largely owned by the top percentages]. home prices are still down from 2007 and will probably stay there for a while. but the nice thing about houses is that you can live in them, they're not like a stock where the only thing it's good for is its value. a 3 bedroom 2.5 bath house in 2007 is still a 3 bedroom 2.5 bath house in 2010. so wealth may be down but utility is the same for that same house. also, there's a selection bias because the places that were hardest hit are going to be the volume leaders in forced sales and upside down mortgages, strategic defaults and what not. and that just continued to snowball (as the comps decreased in value the other houses in the area decreased in value, more people found themselves upside down, rinse, repeat).
i'll also throw in my usual concerns about household granularity increasing (that is, i'm fairly certain that household size is smaller than it was 25 or 30 years ago due to people spending less of their lives married, whether due to waiting longer to get married or higher divorce rates) which serves to dilute 'household wealth'. conversely, we've been losing households since the start of the recession due to people getting roommates.
much bigger concern to me than wealth distribution is the huge increase in the income:debt ratio for middle income quintiles. it went from 100% in 2000 to 157% (i think, i saw the number in the report as i skimmed it but can't find it again) in 2007. that's a huge increase in debt load. there's the fuel for the housing bubble right there.