Napolitano is wrong:
Here’s what he said;
“The statute prohibits all attempts to interfere with the government," Napolitano said. "So if you think you are interfering with the government. If your purpose is to interfere with the government in order to save yourself — not to help the government — then you have committed the crime of obstruction.
The crime if obstruction of justice requires the existence of a judicial proceeding, like a grand jury investigation in this case of S.C. If I recall the chronology of events correctly, Mueller had not even been appointed let alone impaneled a grand jury when this occurred.
Oh, here I go “supporting” Trump once again.