I can only think of a handful of cases where their overreaching negatively affected them, however.
You can muck up quite a bit and quite often as long as you've got a fawning press and an idiot electorate on your side.
More than a fawning press. A traitorous press!
I actually watched one of them unfold back when the Iraq war started in 2003. I was watching live coverage of the San Francisco protests (when the old hippies who had slid into disco demons and then into rank capitalists decided because a Republican was President they wanted to be hippies again). All was going well with the shouting and the signs until some of the old hippies (the real ones, not the ones who became disco demons and then capitalists and then decided they wanted to recapture their youth and impress girls because they were again War Protestors) began actually and rather enthusiastically defecating while the live news cams were rolling. The live news cams were suddenly shut down, and nobody mentioned those protests for a long time. THAT was overreach.