Well, even the ten commandments aren't definitive in themselves. it all boils down to, when in a situation of conflict, choosing to protect the higher value.

for example, thou shall not kill... but in a situation of self-defense, killing is warranted. it is warranted to sacrifice the child to save a mother's life. these are all in accordance with church teaching.

thou shall keep holy the lord's day... but that doesn't mean that doctors shouldn't save lives (because it is their work) on sabbath days, as jesus himself emphasized greatly.

now the question is of course, which is the higher value that should be protected in this current issue: the integrity of the presidency, or adhering rigidly to the written law.