Sec. 201 Broadcasts relating to all Senate candidates
“(d) Preemption
“(1) In general—Except as provided in paragraph (2), and notwithstanding the requirements of subsection (b)(1)(A), a licensee shall not preempt the use of a broadcasting station by a legally qualified candidate for Senate who has purchased and paid for such use.
“(2) Circumstances beyond control of licensee—If a program to be broadcast by a broadcasting station is preempted because of circumstances beyond the control of the station, any candidate or party advertising spot scheduled to be broadcast during that program shall be treated in the same fashion as a comparable commercial advertising spot.
“(e) Audits—During the 30-day period preceding a primary election and the 60-day period preceding a general election, the Commission shall conduct such audits as it deems necessary to ensure that each broadcaster to which this section applies is allocating television broadcast advertising time in accordance with this section and section 312.”