Question

the supreme court chief justice cannot do what during impeachment trials? preside over the case vote on charges serve as judge

Explanation:

Under U.S. constitutional rules, the Supreme Court chief justice presides over presidential impeachment trials in the Senate (serving as judge/presiding officer) but does not have voting power—only senators vote on whether to convict. Thus, the chief justice cannot vote on charges during impeachment trials.

Answer:

vote on charges