Trump has said he'd give a statement under oath - just like he said he'd release his tax returns after audit. Well that audit has to be long over - it doesn't take 18 months to complete.
Trump also has NOT said he'd testify under oath - i.e. be subject to examination. He'll just give a statement, subscribed and sworn to before a notary public.
The narcissistic bloviator will continue to lie and lie, all while raking in big Russian rubles.