[TeMPOraL]

The problem with elected politicians is that politics is a career path. By the time you get to the position of being electable, you're likely knee-deep in shady deals, and when you get elected, the pressure only increases.

While there may be other downsides of sortition to consider[0], it at least seems to avoid this problem - since each issue is considered by people in isolation, there's no point in trying to make deals, since the next time around someone else will be chosen to vote.

That said, we have XXI century now - why not try and let everyone vote on everything? I think the idea is sometimes called "liquid democracy".

[0] - one downside that comes to mind is a lack of context and inability to form a coherent strategy; it's already one of the biggest problems with democracy, and that would only deepen it