The plumb line and level allow the builder to build according to the laws of nature which were enacted by nature's God.
Would you hire a builder who scoffed at the use of the plumb line and level?
Would you hire a builder who didn't even own a plumb line or a level?
Of course not.
So, why in the world would you support a politician who pays absolutely no mind to God's laws, or the laws of nature, or the obligations of his sacred oath of office to support and defend the Constitution of the United States?
It's a fair question.