And if enough resources are committed for long enough and given enough leeway they eventually may discover that President Trump did something naughty long before he was President, probably even pre-Apprentice.
Then London to a brick the same people that have been so wrong for so long will ignore their three years of being completely incorrect about everything they have posted and say 'see, told you'.
No Russian collusion though and the Congressional impeachment will proceed anyway. The wheels have been in motion too long to back out just because it was based on a falsehood. The Dems have the numbers, they will use them and likely pay the price in 2020.