Distraction
Take as much attention away from Trump as you can.
I don't think that was it at all, well not in the way you are suggesting.
Remember how Trump framed this announcement, as being HISTORIC. In fact that got Trump supporters SUPER excited. The most common feedback as 'It HAS to be something bigger than Trump simply announcing he is running for President! Cause we already know that!"
If Trump supporters thought that, you can best believe the deep state did too.
The RUSSIAN missile killing two people in Ukraine was their contingency plan against Trump holding an announcement where he tells the world something obama/hildabeast/hiden didn't want him sharing.
Then when all he did was announce his candidacy, then it became a UKRANIAN missile.
And the story magically disappers. 12 hours earlier, that missile was going to throw us into World War 3.
Then we found out Trump really didn't have a blockbuster announcement after all, and tragedy was averted.
As I always say, never ever NEVER watch what Trump says and does, watch how his targets REACT to what he does.
Now for the $64 Million dollar question: What did the dems THINK or FEAR Trump was going to announce??????