Troubling is that the AG was supposed to recuse himself from investigations into Russian interference that was led by Director Comey. That is more than an awkward chain-of-command issue because Sessions is a likely subject of the inquiry.
Beyond that, the main problem comes from the content of Donald Trump's letter to Comey in which Trump attempts to exonerate himself by claims of Comey's having met with him several times stating that Trump was not a target. Also, Trump's campaign rhetoric repeatedly praised the actions on which Trump ultimately fired Comey.
Transparent to even the most unenlightened Americans is that Trump is conflicted and that his action is one of executive abuse and interference as well as obstruction of justice.
Republican and Democratic leaders are denouncing the manner and timing of the Comey firing, and many are calling for a Special Prosecutor.
Also, Trump will be in a position to hire a new FBI Director subject to Senate approval. Since FBI investigations fall under that chain-of-command, there will be a cloud of suspicion.
One remedy is for the appointment of a special prosecutor that is determined and selected by a bipartisan committee of Congress.
Still, the actions by Donald Trump are highly irregular and inappropriate under the circumstances. For the same logic that he decided to remove Comey, he should step down from the office of President.
Comey's firing is a hiccup from which the burp may well lead to Trump's impeachment sooner than later.
U.S. President Donald Trump takes his seat to host a meeting with cyber security experts in the Roosevelt Room of the White House in Washington, U.S., January 31, 2017. REUTERS/Kevin Lamarque