Lick, FISA warrants, spies (reclassified as informants), wire taps (reclassified as phone monitoring) and seemingly the entire weight of the FBI, NSA and CIA behind trying to find if Trump was colluding with Russia. A year later, and to date, not a whole lot.
So at this point we've got three things going on:
1. A purposeful slow bleed
2. The most expensive homeland security apparatus in the world is terrible at their job
3. The Trump junta is fantastic at clandestine operations and the Russian's outclass the most expensive homeland security operation in the world on every conceivable level