The conversation that has so far taken place in the run-up to this year's U.S. presidential election, highlighted by the third and final presidential debate Wednesday, has been a nightmare for Japan.

Throughout the campaign, Republican presidential nominee Donald Trump has held the United States' biggest ally in Asia accountable for job losses and massive debt in the world's largest economy.

For her part, Democratic nominee Hillary Clinton, who once supported the Trans-Pacific Partnership trade deal, has kept up a barrage of attacks on the pact, which Japan is hoping to soon ratify.