In the case of Monks v. New Jersey in 1969, the U.S. Supreme Court was asked to consider whether a state law that prohibited convicted felons from voting violated the Equal Protection Clause of the Fourteenth Amendment. The plaintiff, Mr. Monks, argued that his right to vote had been unconstitutionally denied due to his status as a felon and sought relief through reinstatement of his voting rights by challenging New Jersey's disenfranchisement statute. The court ruled against him stating that states have broad powers under their police authority to regulate elections and determine voter qualifications including disqualifying individuals who have committed serious crimes from voting. It held that such laws do not violate equal protection because they are based on legitimate state interests in maintaining an orderly society and ensuring integrity within its electoral process. This decision upheld states' rights to establish their own rules regarding voter eligibility while also affirming the constitutionality of felony disenfranchisement statutes which continue today with varying degrees across different states.

The dissenting opinion in the case of Monks v. New Jersey, 1969 is not available or does not exist in public records. The Supreme Court often includes both majority and dissenting opinions, but it's possible that this particular case did not have a recorded dissenting opinion.