Treason? No one has claimed that Trump provided aid and comfort to the enemy during wartime. At worst, he delayed aid to a friendly nation with which America is at peace.
That’s not treason.
Bribery? At worst, Trump postponed some $391 million in assistance to Kiev, presumably in exchange for dirt on former Vice President Joe Biden. The aid was delivered, and no such dirt was received. None of this money ever got near Trump’s pocket or that of Ukrainian President Volodymyr Zelensky.
“High crimes and misdemeanors?” While this criterion is more nebulous, it also seems far out of reach. Democrats accuse Trump of extorting Zelensky to investigate for corruption any of the eyebrow-raising connections between Kiev and Joe and Hunter Biden, the former veep’s son. Democrats claim such a probe was what Zelensky had to launch before receiving the aforementioned military aid. This is the notorious quid pro quo.