I've been wondering about this for quite a while and finally decided to find a good forum to ask about it. In the Friends episode "The One with the Kips," where Joey finds out about Chandler and Monica's relationship, there is a part where either Phoebe or Rachel (I can't remember which one) says to Monica that she heard that Monica saw Donald Trump during her fake trip (to hide the fact that she was with Chandler). Monica responds with something like "Yeah, I saw him waiting for an elevator," and the reaction from Chandler and Joey (and the audience too) suggests that this line is sort of a hint that Monica was actually with Chandler.
Yet for the life of me, I cannot find any part of this episode where this line has any relevance, so it makes me wonder if maybe something else was cut out in syndication that gives this line more context. Anyone know what I'm talking about, or what this line is supposed to mean?