Your P.S. made me go to and find a suprise at  the new NYTimes article reporting the failed launch when I might not have. Trump probably will not be rubbing it in because we might have had something to do with it failing and that would be due to Obama's program:

[...] The timing was a deep embarrassment for the North’s leader, Kim Jong-un, because the missile appeared to have been launched to show off his daring as a fleet of American warships approached his country to deter provocations.

Cmdr. Dave Benham, a spokesman for the United States Pacific Command, said the military had “detected and tracked what we assess was a North Korean missile launch at 11:21 a.m. Hawaii time April 15.”

The missile blew up almost immediately, and the type of missile involved is still being assessed, he said.

Over the past three years, a covert war over the missile program has broken out between North Korea and the United States. As the North’s skills grew, President Barack Obama ordered a surge in strikes against the missile launches, The New York Times reported last month, including through electronic-warfare techniques. It is unclear how successful the program has been, because it is almost impossible to tell whether any individual launch failed because of sabotage, faulty engineering or bad luck. But the North’s launch-failure rate has been extraordinarily high since Mr. Obama first accelerated the program.

In an unusually worded statement that left hanging the question of whether the United States played any role in the latest launch’s failure, Defense Secretary Jim Mattis said: “The president and his military team are aware of North Korea’s most recent unsuccessful missile launch. The president has no further comment.” [....]

Even if this failure wasn't our fault, it wouldn't be wise to make it sound like it wasn't. Neither is Trump wont to give Obama credit even if Mattis advised that it would be smart to suggest we had something to do with it, which he clearly thinks shouldn't be done. Cheshire cat is the way they've decided to go.