Can the United States Government vote to repeal current articles or amendments from the constitution? Or is the constitution forever?
That amendments exists shows that yes, you can amend the constitution. It's a living document. You can repeal an amendment by...amending the constitution by voting for a new amendment. Prohibition was enacted when the 18th Amendment was passed. It was later repealed with the 21st amendment.
Articles could also be "repealed" via further amendments.
The US constitution can be changed through amendments. An amendment can also repel or modify one of the articles or a previously made amendment.
The constitution allows amendments to be proposed either by congress or by two-thirds of all states, however the latter method was never used.
In order for an amendment to become part of the constitution, it first needs to pass both the senate and the congress with a two-thirds majority and then be ratified by three quarters of the US states by either making it as a state legislatures or a state convention.
The questions, as posed, are somewhat problematic. First, the U.S. government is not equipped to vote. Votes are cast in the two houses of congress and in various state and municipal legislative bodies. Second, the conjunction "or", linking the second question to the first, is misplaced. It presumes a corollary relationship between the two questions. The constitution is permanent, in the common sense of that concept. It is, however, subject to amendment by a purposely long and arduous process.
Any proposed change to the constitution, be it addition or subtraction or alteration, is defined as an amendment.