Completely disallow private or commercial contributions to political candidates. Completely disallow the provision of ANY sort of payment, compensation, gift or any other source of potential influence given to sitting politicians.
Unfortunately, my friend, your suggestions have a great deal of Sugar Rock Candy Mountain wistfulness about them. Suggesting that if we simply outlaw "ANY sort of payment, compensation, gift or other source of potential influence" we can eliminate such influence has a much merit as suggesting that if we just outlaw guns completely we can completely eliminate gun crime.
But moving right along let's pretend for a moment we really CAN outlaw monetary influence peddling. How far are we going to go with the definition of "payment" or "gift?" Are we saying that if Dick Cheney wants to go out lawyer hunting he can't accept a ride in an old friend's Ford Bronco in the field because that might be considered a "gift?" Would Cheney have to figure out reimbursement for the gas, oil and depreciation on the old Bronco and pay up? What if there are 3 in the Bronco? Does Cheney pay ⅓ of the expenses? This could get rather tricky.
Are we suggesting that a sitting politician could no longer accept a dinner invitation with friends? "Don't offer me a beer; I'll bring my own." "Gee, thanks for the Christmas sweater, Aunt Beulah, but I can't accept this." It's getting tricky again.
Increase taxes sufficiently to allow public funding of political campaigns.
That might be a nice way of employing C.P.A.s to make sure campaigns spend ONLY up to a certain limit, but as the McCain-Feingold Campaign Reform debacle has shown, it NOT going to keep private money out of political campaigns.
Oh, well, we'll just outlaw all those 527 groups! However, are we saying I'm not allowed to put a sign out in my yard, at my own expense, saying "Vote For Obama!"? Aren't we treading rather heavily upon the 1st Amendment and
my free speech?