I get that you are a birther and have to have a different opinion, but when other people don’t agree with you that doesn’t mean they were or are lying.
No, it generally means they don't know what they are talking about. Not the same thing as lying, but it generally has the same effect of misinforming other people.
Now it occurs to me that a more sensible man would have said "Where's your proof?" But I see you have just dismissed the point out of hand, which is just as well. I didn't want to wade through all my bookmarks on this topic anyways.