A party must always re-examine their witness. A party has a discretion as to the conduct of all questioning. They don't even have to examine-in-chief.

Question

Quizplus · Accepted Answer

While a party has discretion in how they conduct questioning, including whether to conduct an examination-in-chief, re-examination is not always mandatory. It is typically used to clarify points brought up during cross-examination and is at the discretion of the party calling the witness.

A Party Must Always Re-Examine Their Witness