http://www.freerepublic.com/focus/fr/602267/posts
the conflict of interest is the following: A lobbyist has to ingratiate himself with individual members of congress. The party chairman, in contrast, has to serve the national party's interests as a whole. That might mean steering money to some candidates and not to others - - - but what if some individual members of congress want the money to go elsewhere, even if it's not in the best interest of the party as a whole? If he rejects the congressman's "Suggestion" and goes with the party's interests, his lobbying, and his lobbying clients, could suffer, because he's teed off a congressman. Moreover, if he goes hard in an effort to defeat certain Dems - and they win anyway - then they're his enemies in congress - and his lobbying suffers. So his incentive to go all-out against Dems might be undermined. Bottom line: It doesn't do the GOP much good to have as chairman a guy who must always be concerned not to undermine his lobbying clout with congressmen.