@Olivier5,
Olivier5 wrote:It is not reaching for straws to point out a few of the many differences in context between now and then, that make Trump's performance on NK difficult if not impossible to compare with his predecessors'.
This being said, I concede that Trump's bullying approach may work where Obama's softer approach failed. The jury is still out, but it could work. It's something different in any case, so let's see.
Comparison of apparently analogous events separated by time is always difficult. However I know of no "differences in context " that make this one extraordinarily so. On the contrary there are many similarities, certainly Clinton's effort; both occurred early in the regimes of new North Korean leaders and both are attended by severe economic difficulties in North Korea's economy, together with prospects for severe consequences for its people and by implication the regime.
It appears to me that the most prominent differences in context here are the facts that (1) severe economic sanctions are, this time, already in place and will remain so until an acceptable agreement is in effect, and (2) the evident fact that North Korea has already ceased missile testing following an explicit threat of military action by the U.S. President if they failed to do so.
Both of these appear to be favorable to the prospects for a lasting change. However, even with this, I recognize that the long term results remain uncertain … more or less as Trump himself has described.