That gives a false picture since it only counts legal declared spending.
For instance, what's the effective value to Trump's campaign of Elon Musk buying Twitter and using it to explicitly promote right wing views? How much did Russia spend this time to promote Trump? What about Israel, cause I'll wager Netanyahu prefers having Trump in office, since Kamala might've demanded at least some holding back.
Actual spending to promote Republican and right wingers was way higher.
This is not quite accurate. The vice president must be eligible to be the President, not to be elected President. The 22nd amendment has some very specific language.
"No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once."
It prevents someone from being elected President, but does not make the person ineligible to be the President since it only restricts that one method of gaining the office. A person can definitely become President through succession even if they have served their full two terms already...at least by the constitution as written.