Is there a provision in the Constitution that allows a party to expel an ELECTED Senator from a sovereign state and nullify the will of their citizens?
No, they have no reason to. Charges does not equal lack of ethics.
They cannot force Alabama to have a different Senator than the one they voted for.
Article I, section 5, clause 2: "Each House may determine the Rules of its Proceedings, punish its Members for disorderly Behaviour, and, with the Concurrence of two thirds, expel a Member."
Sadly, yes: Article 1, Section 5
Each House shall be the Judge of the Elections, Returns and Qualifications of its own Members, and a Majority of each shall constitute a Quorum to do Business; but a smaller number may adjourn from day to day, and may be authorized to compel the Attendance of absent Members, in such Manner, and under such Penalties as each House may provide.
Each House may determine the Rules of its Proceedings, punish its Members for disorderly Behavior, and, with the Concurrence of two-thirds, expel a Member.
It's a suicide pact, written right into the Constitution. 2/3rd of the US Senate could expel the entire delegation of a state, making that state personna non grata and of no account in making the laws of the United States.
Yes. Article 2, Section 5 allows for expulsion upon the concurrence of 2/3 of the members. In the Senate that is either 66 or 67 depending on if the language is taken to mean 2/3 of all members(100) or 2/3 of the members voting(99 since presumably one doesn’t vote on one’s own expulsion resolution. No Senator has been expelled since the Civil War, so I would imagine that the finer points of the constitutional language would inevitably be litigated).
Unfortunately, that 2/3 vote will not be a tough nut to crack. The Democrats plus the technically Independents that are really Democrats hold 46 seats. The GOP establishment only needs 20/21 votes to join with the Democrats to make the 2/3 threshold. That’s around 40% of Republican Senators.
If McConnell wants Moore out, he almost certainly has the votes.
No. It is unconstitutional.