He looks desperate...hiding behind a facade of pretenses. If he couldn't resolve the trade dispute with China soon, he knows that the US will go into a borderline recession in Q4. He is trying to get the Fed Chairman to do his bidding to lower interest rate so as to jack up the economy.
if the US economy should go into recession soon , he may lose the 2020 re-election.
Dotard will win again 2020 re election. Israel will make sure he win! Any Presidential hopeful need to seek "clearance" from Jewish state.