With results showing that an implausible 99.91% of voters supported the amendments, the referendum was accused of being "obviously rigged".

[2] Following the successful passage of the constitutional amendments, the country became a one-party state with the Convention People's Party as the sole legal party (though the country had essentially been a one-party state since independence in 1957).

Nkrumah became president for life of both nation and party, with greatly expanded powers; he could now remove members of the Supreme Court at his discretion.

Elections were scheduled to be held under this system in 1965, but were cancelled shortly beforehand, with Nkrumah appointing MPs instead.

However, Nkrumah was overthrown in a coup in February 1966, the CPP was dissolved, and the constitution suspended.