Politicians should be very well-paid by the government and absolutely forbidden from any other revenue streams. No donations to the politician, no lobbying, no gifts, no grifts. No speaking fees, no book deals, no consulting gigs. Nothing. For their entire duration in office and for five (maybe 10) years after leaving office. Politicians should be forced to disclose every single gift they receive; even a birthday card from their mom with $5 inside needs to be tracked and monitored.