He's claiming "reports" and "studies" showing fraud. Show us the evidence. If you don't have any evidence, you're spending time and money investigating ... nothing.

And if you've spent all your time and money investigating nothing, you don't have any left to investigate real things. Which is exactly the plan.

Even getting the press to talk about the allegations is distracting the press from real issues. Chuck Todd nailed this when he said (paraphrasing), "I agree that inauguration crowd size it unimportant. But if it is unimportant why was that the first thing the new press secretary was sent out to discuss? And why was he made to tell obvious lies?"

It's multiple reasons, including:

* Loyalty test - If you're not willing to tell obvious lies for Trump you can't be trusted. (That whole link is worth reading.)

* Distract the press - As long as they're talking about crowd size they're not talking about blocking visas being issued to anyone from Syria, Iraq, Iran, Libya, Somalia, Sudan and Yemen.

* Isolate supporters - Drives a wedge further between his supporters and any news source that doesn't match their worldview.

* Fatigue the undecided - Convince the third of the population that don't have strong partisan leanings that it isn't worth trying to figure out what's true and just stay out of the process.

[edit]

And here's an example of the goal of that fourth point.