Hey gang, what time is it? Well, it's not Howdy Doody Time
Collusion may not stick or nail Trump, but keep in mind the following from here:
But (1) money laundering; (2) tax fraud and tax evasion; (3) lying under oath; (4) obstruction of justice; and (5) abuse of power are all part of bigger overall picture that may cover and reach Trump himself, e.g., Bribery or some other High Crimes and Misdemeanors for impeachment of Trump (from Find Law here):
I am sure that S/C Robert Mueller will prove any number of those categories.
Money laundering and tax evasion are high on that list as well as obstruction of justice – case in point the firing of former FBI Director James Comey.
Trump in his own words kind of makes that case, when he told Lester Holt live on NBC TV: “I decided to fire him (Comey) him because he would not stop the Russian thing.”
That firing in and of itself may be illegal if it amounts to obstruction of justice. The question boils down to whether Trump fired Comey to try to slow or halt that investigation and/or because Comey wouldn’t pump the brakes on the investigation.