Interesting point of view, I guess. I would note it's a radio interview and the precision and volume one finds in Chomsky's writings is likely to be less given the forum. Kind of like when Obama refers to the 57 states or the President of Canada. I think anyone who's read Chomsky's works will note he provides a huge amount of evidence to back up his assertions.
In any case, you are correct that Obama has a range of financial support, but I assume what Chomsky is referring to is these kinds of stories:
http://www.thaindian.com/newsportal/india-news/obama-way-ahead-of-mccain-in-wall-street-firms-funding_10066375.htmlObama way ahead of McCain in Wall Street firms funding
July 1st, 2008 - 12:20 pm ICT by ANI -
Washington, July 1 (ANI): Financial industry big houses have contributed almost twice in funds to Democratic presidential nominee Barack Obama in comparison to his Republican rival John McCain.
For both candidates, Wall Streets investment and banking sectors have become among their portliest cash cows, contributing 9.5 million dollars to Obama and 5.3 million dollars to McCain so far, The Daily News reported.
No matter who wins in November, Wall Street will have a friend in the White House, said Massie Ritsch of the Center for Responsive Politics, which crunched the data for The Daily News.
http://www.opensecrets.org/pres08/contrib.php?cycle=2008&cid=N00009638Barack Obama (D)
Top Contributors
This table lists the top donors to this candidate in the 2008 election cycle. The organizations themselves did not donate , rather the money came from the organization's PAC, its individual members or employees or owners, and those individuals' immediate families. Organization totals include subsidiaries and affiliates.
Because of contribution limits, organizations that bundle together many individual contributions are often among the top donors to presidential candidates. These contributions can come from the organization's members or employees (and their families). The organization may support one candidate, or hedge its bets by supporting multiple candidates. Groups with national networks of donors - like EMILY's List and Club for Growth - make for particularly big bundlers.
University of California $1,385,675
Goldman Sachs $980,945 Microsoft Corp $806,299
Harvard University $793,460
Google Inc $790,564
Citigroup Inc $657,268 JPMorgan Chase & Co $650,758 Stanford University $580,904
Sidley Austin LLP $574,938
Time Warner $547,951
National Amusements Inc $541,251
WilmerHale $524,292
UBS AG $522,019
IBM Corp $518,557
Skadden, Arps et al $510,274
Columbia University $503,566
Morgan Stanley $490,873 US Government $479,956
General Electric $479,454
Latham & Watkins $467,311