TL;DR, will Trump be POTUS for ≥42 months and <43 months? Most of these criteria points are covering the corner cases. If I missed a corner case, and it happens, market resolves to best judgement. 

Struck-through items are no longer relevant and can be ignored. 

Assume EST time zones for all dates and times. "Exactly 42 months" is defined as the market window from Jul 20, 2028 to Aug 19, 2028, conservatively allowing until 11:59pm on the last day. 

If the inauguration is somehow delayed past Jan 20, 2025 by any number "n" days, shift these dates forward by n days.

 (These dates were calculated by Googling "42 months from Jan 20 2025" and "43 months from Jan 20 2025" and subtracting one day from the last date to still be considered the 42nd month.)

The Bible, Revelation Chapter 13 (pick your favorite translation). 

https://www.biblegateway.com/passage/?search=Revelation%2013&version=NKJV

The Book of Revelation is about the "End Times" prophecy in the Christian religion. One 

 interpret the first assassination attempt on Trump as Verse 3. 