Probably true but they have an even bigger problem.
Anyone (D or R) that votes to impeach KNOWING that POTUS committed no crime would be in trouble.
If there is any evidence at all that shows they did this at the request of, or on behalf of, a foreign entity it would be grounds for charges of TREASON.
I think this is exactly what POTUS wants. He wants them all on the record so they can't back out later.
It will be indefensible once the evidence is presented that they KNOWINGLY attempted to remove the lawful President on behalf of a foreign, hostile, entity.
Great plan !!