1
general::
see HOT SEAT., In a position of extreme stress or discomfort, as when subjected to harsh criticism. For example, When merger negotiations broke down, he was in the hot seat with the stockholders. This expression extends hot seat in the sense of "the electric chair" (for effecting an execution) to wider use. [c. 1930]
American Heritage Idioms
2
general::
Phrase(s): in the hot seat
Go to on the hot seat.
McGrawhill's American Idioms And Phrasal Verbs