Raising taxes is a no-no with Grover, so that leaves raising the eligibility age.
He became a supporter and since then he became a supporter of the whole [Obama eligibility] issue.
But the per-person cost of Medicare has increased even more rapidly than the eligibility numbers.
early 15c., "fit or proper to be chosen," from Middle French eligible "fit to be chosen" (14c.), from Late Latin eligibilis "that may be chosen," from Latin eligere "choose" (see election). Related: Eligibly.