As transient as his positions on social issues seem to be, his public statements on "free trade" appear to have been eerily consistent. Here is him talking in 1988, and if you substituted "China" for "Japan", it could be a speech from yesterday: https://www.youtube.com/watch?v=SEPs17_AkTI
No idea whether this is consistent with his actions, though.
No idea whether this is consistent with his actions, though.