ELI5: What is the difference between the Delegate, Trustee … – Reddit

The politico model acknowledges that neither of the above is accurate with perfect consistency, but both are useful parts of a more holistic model of representation. A politico will sometimes act as a delegate, sometimes as a trustee; they will choose when to act as either depending on the specific issue under consideration.

https://www.reddit.com/r/explainlikeimfive/comments/gptm9t/eli5_what_is_the_difference_between_the_delegate/