This shows that the Twitter verified accounts system/blue checkmarks are pretty worthless. Gravel may have handed his password over to the kids, but other “individual” accounts are run by multiple admins using Twitter’s built-in features, and some politicians have the disclaimer “tweets by me have my initials”.
Twitter should restrict verified individual accounts to a single user (the actual person who owns the account) and remove the check mark from people who violate those rules. There are also individual accounts that seem to be selling access to their followers by giving admin rights to others.
Accounts that have multiple admins should have this explicitly called out in the profile/name (“Office of XYZ”) , and which admin posted the Tweet needs to be made explicit.