Aside from the being shoddy, a big problem with the current right wing scandalmongers is that it's all turned up to 11. There's never any sense that, even if true, something might be a minor scandal but basically not a very big deal. Every little nugget they turn up is thing that will lead to impeachment, and then through some weird constitutional trick the installation of the Great And Glorious President Bachmann, or whoever their favorite is that week.
Finding examples of minor to moderate corruption shouldn't actually be that hard, if they were genuinely interested in doing so. But they're only interested in ending the presidency of B. Barry Bamz.