He may have allegedly committed a crime...obstructing justice. This obstruction may have allegedly occurred during an investigation into something that likely isn't a crime. The focus on the alleged obstruction is probably due to the fact that there actually isn't any evidence of an actual crime being committed.

It's easy to say "there is evidence." It's another thing entirely to prove that there actually is evidence and that this evidence proves a crime was committed.

I'm no fan of government and politics, but this Trump stuff is mostly just sour grapes and absolutely ridiculous drama. Democrats are pretty much unhinged these days. They should settle down. The Republicans are very capable of shooting themselves in the foot. Just give them a few more months. The hammers are already cocked and they're currently taking aim.