Impeachment was never meant to be weaponized like this, and it certainly was never meant to be conducted without Due Process and No Evidence.
FISA was never meant to be weaponized against American Citizens or a Candidate Running for Office.
But The Framers expected that Representatives would be honest men with some Ethics. As with all things, when people can no longer be honest and ethical, we have to write new laws and regulations to maintain law and order.
So, what needs to happen is Impeachment needs to be changed to a 2/3rds majority vote to happen, so that it is forced to be a Bi-Partisan Process.