Whats the call ?

[rj]

First of all, I expect the trip was obviously flagrant and in no way could be considered accidental. With that being the case, I would judge that a malicious act and therefore warrents the ejection.
Now for R1, I would say that, due to the obstruction (trip), the runner was protected to return to 1st base, tag up, and awarded 2nd. Once R1 passed 2nd base, the delayed dead ball call would drop and the results of the play at 3rd stand. When the appeal that R1 did not tag up at 1st base was honored, then R1 is out.

By the way, what are you doing up at this time of the morning?