>Right now there is zero recourse for a politician that promises something and then does a 180 on it immediately upon getting elected.

We do not elect people for life.

Recalling a senator or judge might make some sense to me since they are elected for such long terms, but people on 4 years or less aren't going to serve a significantly shorter term than normal since recalls take so long (and how long do you need to judge that a person has "done a 180")?

For every one person you get removed from office you gum up how government works a ton and make special interests (like Sinclair) far more powerful, since they have the money to organize a recall and fund what would certainly turn into endless elections.