I think that rule has been suspended for Trump.
Not the point.
It’s a very different situation from the Scriptural story.
We are indeed not supposed to stone (other) sinners, but that is very different from expecting character in a President.
Conflating the lesson Jesus was teaching about looking inward before condemning others (a lesson which those around him clearly understood), is not even remotely the same as asking that our leaders be truthful, decent and moral.
We, formerly in the Republican Party have always...... ALWAYS..... had that expectation in those we nominated.
The fact that it is no longer true, and that there is pretense that nothing has changed is disturbing, to say the least.