There will be confirmation, regrettably, that Trump's phones weren't tapped. Any calls that were picked up would have been incoming from foreign targets of American intelligence. 

We now know there was ample justification for agencies to target the Trump campaign directly. The administration could have sought and obtained a court order but - justified or not - it's not something Obama's high minded principles would allow him to do.  A missed opportunity as it turns out.

Were the shoe on the other foot, we know Trump wouldn't hesitate for a second. We know that for sure because Trump publicly encouraged Putin's illegal intervention in the presidential elections. Indeed when it comes to principles, we know Trump and the people around him have none. 

But this time Trump might have outdone himself. By demanding a congressional inquiry, he may have unwittingly provided moderate Republicans the cover they needed to join Democrats in a much wider investigation of electoral fraud.