From OpenSecrets: Partisan Breakdown of Top 5 Donor Industry Sectors (2013-2014)

[All Along The Watchtower]

1. Finance/Insurance/Real Estate

Total:$129,843,765   
Democrats:  34.3%
Republicans: 58.9%



2. Other:

Total:$84,349,866   
Democrats: 46.3%   
Republicans: 41.1%



3. Ideology/Single-Issue   

Total: $69,554,912   
Democrats: 38.0%   
Republicans:44.4%



4. Miscellaneous Business   

Total: $67,529,031   
Democrats: 36.5%
Republicans:58.3%



5. Lawyers & Lobbyists

Total: $53,480,881   
Democrats: 62.0%   
Republicans:35.1%

More: https://www.opensecrets.org/industries/

Each of the top 5 industries/sectors donated over $50 million (!) this past election cycle.

[Indy Texas]

This isn't all that helpful. "Other" is a pretty amorphous category. And lumping lawyers and lobbyists together makes no sense either.

[Meeker]

Rich people give a lot of money to politicians; some to Democrats, some to Republicans. More at 11.