Situation for all you future politicians: You haven't been able to bring in any money into your district -- the polls show a close race, and someone offers you a big boost for whatever your district/area/whatever needs -- however, you have to vote X on issue Y, despite your objection.
What do you do? Get re-elected, compromise a little ethics? Much easier said than done, especially in a career as vicious as politics.
Hmm... I'd conduct a vicious smear campaign against my oppenent... (ala the "babies" campaign)... hmm... then I'd get a bit of pork-barreling done I suppose... dunno 'bout compromising ethics though... Maybe a wee bit of ballot stuffing?