Real examples of big win/loss due to market (or election) timing

[Billy Zhao]

I've seen so many people talking about the election and how its gonna change the market and help/screw all the investors in a huge way. But I haven't found any real historical evidence that any of the previous elections that actually directly resulted economic tsunami, perhaps with the only exception of Andrew Jackson who hated the central bank and national debt, and as a consequence, his policy caused a major land speculation bubble and subsequent bust and recession (one of the longest). But even that didn't take place until his 2nd term.

So do you know any "wait till after" regrets and reliefs to speak of?