Out of curiosity, if he's lying about not being involved (hypothetically speaking), are there any legal repercussions for him making a public statement that is completely deceptive?
I asked myself that same thing! I'm not a lawyer but I don't think there can be any legal repercussion.
To get in trouble for blatantly lying in public, when not under oath, it has to affect someone else directly. So, for example, you can't commit libel/slander which is defamation of someone (actually might apply to Newsweek against Dorian).
Politicians are lying all day long, and they are doing just fine.