I recently sold my home. The realtor neglected to have a follow up
home reinspection conducted.  Electrical problems were found a month
and a half after escrow closed. Am I liable to pay for any repairs?

From the term "Re-inspection" it sounds like there was a known problem
that was supposedly fixed? Did you agree to fix it?  Did you claim
that it was fixed? It sounds like there are relevant facts that have
been omitted - you should talk to a lawyer.

If you and your buyer signed a disclosure agreement and you made no
representation to the seller of problems, it is not your
responsibility to fix anything, unless you knew of a problem and
withheld disclosure.  If your or the buyer's broker made a
representation it is their problem.  Home inspectors are not engineers
and not binding.  Get a lawyer if it becomes a problem.  If title has
passed and you have not commited fraud by misrepresntation or
ommission, the new owner of your house is stuck with the problem.