POTUS' legal team has full authority to subpoena witnesses and compel them to testify or be held in contempt.
Worst case, they show up, plead the 5th and clam up for the duration of the hearings. Even so, he can take torpedo the electoral campaigns of Biden and others by requiring them to be in DC to attend the hearings.
But there's also the discovery process and the documents, emails, text messages, etc, etc from the FISA court, FBI, CIA and so on that will be damning, especially if Trump follows form and declassifies it, as is his privilege as POTUS.
POTUS' legal team has full authority to subpoena witnesses and compel them to testify or be held in contempt.
Worst case, they show up, plead the 5th and clam up for the duration of the hearings. Even so, he can take torpedo the electoral campaigns of Biden and others by requiring them to be in DC to attend the hearings.
But there's also the discovery process and the documents, emails, text messages, etc, etc from the FISA court, FBI, CIA and so on that will be damning, especially if Trump follows form and declassifies it, as is his privilege as POTUS.