She didn’t work for him. Deal with it : )
Trump himself said she did work for him, in that link I already gave you. Here’s another showing her and Rudy having a joint appearance on Fox:
https://www.foxnews.com/transcript/trump-legal-team-to-file-new-ballot-lawsuits
But if you want to call Trump a liar for announcing her as part of his team, you’re obviously able to, no matter what he and the facts may say.