"She is just stupid, tactless and not very intelligent " mmmm just wondering how you seem to her?
Not that you need to put up with people in your own home no matter who they are. Just tell them...they aren't welcome! Tell your husband they are not coming to your house again for the reasons you have given.
If your husband doesn't agree, perhaps he doesn't see the stupid, tactless and unintelligent attributes to his sister? As for comments to other people? Are the fact or hearsay? Sometimes you just got to be a bit more open minded
Another Tory MP crosses the floor