2016 election spending:
(Source: The Center for Responsive Politics)
According to its website, the U.S. Chamber of Commerce is a non-profit organization that represents the interests of more than 3 million businesses. Since 1998, the trade association has spent $1.2 billion on lobbying -- more than than any other group in the U.S., according to The Center for Responsive Politics. The group leans conservative and has made $5.8 million in political contributions since 1990.
involvement in federal and state elections:
The Chamber supports general election candidates who are aligned with what it describes as a pro-business agenda. While it occasionally backs Democrats who agree with its philosophy, the bulk of its support goes to Republicans. More recently, however, the Chamber has spent money opposing tea party Republicans, who disagree with its positions. In 2014 it spent $1 million opposing Republican candidates, and $1.4 million opposing Democratic candidates. The group is planning to spend about $100 million in the 2016 election cycle.
Freedom Partner Chamber of Congress, which, according to Politico, has deep ties to the Koch brothers, donated $5.5 million from 2012 to 2014, Crossroads GPS, whose president Stephen Law was formerly general counsel to the Chamber, gave $5.25 million in 2014. The Kentucky Opportunity Coalition also gave $1 million in 2014.
Kelly Ayotte (R-NH, Senate), James Comer (R-KY, House), Dan Donovan (R-NY, House), Drew Ferguson (R-GA, House), Joe Heck (R-NV, Senate), Ron Johnson (R-WI, Senate), Mark Kirk (R-IL, Senate), Darin LaHood (R-IL, House), Roger Marshall (R-KS, House), John McCain (R-AZ, Senate), Rob Portman (R-OH, Senate), Martha Roby (R-AL, House), Pat Toomey (R-PA, Senate), Todd Young (R-IN, Senate)
Evan Bayh (D-IN, Senate), Russ Feingold (D-WI, Senate), Maggie Hassan (D-NH, Senate), Tim Huelskamp (R-KS, House), Jason Kander (D-MO, Senate), Ann Kirkpatrick (D-AZ, Senate), Catherine Cortez Mastro (D-NV, Senate), Katie McGinty (D-PA, Senate), Patrick Murphy (D-FL, Senate), Ted Strickland (D-OH, Senate)