[P-Marlowe]

I think you misread what I wrote.

The politician (prostitute) takes the money from the contributor (the john) and then screws them (as in "screws them").

IOW they don't give them any special consideration.

Get it?

[aruanan]

I read what you wrote: An honest politician is like an honest prostitute. You take their money and then you screw them.

You mean, "Honest politicians are like honest prostitutes. If you're willing to given them the money, they're willing to give you a ride"?

The more usual scenario, and one that plays better off the sense of getting screwed, is that the john (a special interest group) pays (in campaign contributions) the prostitute (the politician) for something he especially wants (a special tax break or other legislation benefitting himself) and the prostitute (the politician) ends up screwing over everyone else.

An example of this is seen in Light Squared contributors to Obama getting the White House to put pressure on a general to change his testimony to Congress to make it sound like Light Squared's plans for broadband won't really be bad for military and civilian GPS.