At best 50-50 that these pardons will stand judicial scrutiny as the charges are state charges.
Now, the premise is, as mentioned in the 15-page memorandum, that these state charges were the result of Federal interference.
But should any state proceed with prosecution they will ignore the pardons and off we go to Federal court, and ultimately to SCOTUS.
OTOH, the Democrat prosecutors may decide not to expose themselves to discovery of what and how things went down, leading to state charges.
U.S. Pardon Attorney Martin’s memorandum to President Trump stresses a similar point, namely that the “prosecutions are attempts by partisan state actors to shoehorn fanciful and concocted state law violations onto what are clearly federal constitutional obligations of the 2020 Trump campaign: the establishment of the contingent electors, the actions attendant to their roles as presidential electors, and their duties under established historical and legal precedent to exercise their responsibilities as electors – all of which are functions of federal – not state – law.”
Under the memorandum’s reasoning, then, because the states are prosecuting the 2020 Trump electors, and those connected to the decision to use alternative electors, for exercising a solely federal function, the President of the United States can pardon them for their supposed state law crimes. This novel theory seeks to sidestep the normal limitation on the president’s pardon authority — an authority limited to pardoning individuals for solely federal crimes.
See:
Trump pardoned 77 citizens who had been targeted by Democrat AGs for their participation in challenges to 2020 election vulnerabilities.
thefederalist.com