Over the last several years, Tim Johnson has collected some interesting campaign contributions. One of his largest single contributors was AT&T, which gave him $29500. By an interesting coincidence, he voted for the COPE (communications) act, and against the Net Neutrality provision. Another big corporate contributor was Exelon ($30000), which owns the nuclear reactor in Braidwood. Unfortunately, the plant was leaking a radioactive compound called tritium into the soil, and Exelon's now being sued by 11 families and the Illinois attorney general.
Altria, who gave Johnson $10000, has also experienced its share of controversy, especially back in the days when it was named "Phillip Morris" (as in "Big Tobacco"). RJ Reynolds Political Action Committee contributed $10500. Lorillard Tobacco PAC kicked in $1000 this fall.
Tom DeLay, the former majority leader, gave him $25000 via ARMPAC. Sadly, DeLay was forced to resign when he and a couple of associates had a small problem with money-laundering indictments. Bob Ney's American Liberty PAC gave him $2000. Ney isn't in Congress now either; he recently pled guilty to charges of fraud and bribery in connection with a lobbyist named Jack Abramoff.
Some of Johnson's individual contributors have had some legal difficulties. Donald Udstuen, who was convicted in connection with the George Ryan trials, gave $1000. Stuart Levine, who was officially indicted with mail fraud, wire fraud, extortion, and misallocation of funds in connection with the TRS shakedowns, had handed over $2000. Bill Cellini, a powerful Springfield Republican who was referred to as "Individual A" in Levine's indictment, has given Johnson $4000. Nick Hurtgen, who'd contributed $1000, was also indicted for mail fraud, wire fraud, and extortion. (See also http://www.timjohnsonwatch.blogspot.com/
John Boehner (the charming fellow who praised Donald Rumsfeld and criticized the troops) also helped Tim out. His PAC with the catchy name "The Freedom Project", gave Johnson $10000. There's quite an interesting story behind The Freedom Project. See, a lot of students use loans to finance their education, but not all loans are created equal. Direct loans from the government ultimately cost students a lot less than loans through "middleman" companies. Sallie Mae, a private corporation that provides student loans, and its executives contributed heavily to The Freedom Project. Boehner was quoted as saying to them, ""Know that I have all of you in my trusted hands...I've got enough rabbits up my sleeve." By an amazing coincidence, Boehner came up with legislation that would allow banks to make more money than ever from student loans. Sallie Mae PAC also gave $1000 directly to Johnson.