Regarding the investigaton into the Trump Collusion Delusion perpatrators..they are finding so much incriminating evidence, they need more time...

Mueller looked at coordination with the Russians, and couldn't prove the Trump campaign coordinated beyond a reasonable doubt. He did provide ten separate instances of obstruction of justice for the House to consider in impeachment proceedings. Those are settled fact. There are twelve other investigations into Trump's criminality in his business, foundation, and inauguration committee. Those investigations will continue until the facts are uncovered.