How will the Attorney General protect America from Tweety Twump's mistakes, conflicts of interest, war crimes to come, or self-aggrandizement?

"Four states sue Trump administration over 'un-American' travel ban"

New York, Massachusetts and Virginia joined Washington state in launching legal challenges against executive order that wreaked havoc at airports at the weekend

https://www.theguardian.com/us-news/2017/jan/31/trump-travel-ban-state-lawsuits

"

New York, Massachusetts and Virginia on Tuesday joined Washington state on a growing list of states challenging the travel ban that caused chaos at airports in those states and beyond at the weekend as people with valid immigration documents were detained or deported after arriving on flights from overseas.

On Tuesday New York joined a federal lawsuit against Trump’s executive order brought by the American Civil Liberties Union Foundation, the Urban Justice Center and others.

Eric Schneiderman, the New York state attorney general, described the order signed last Friday as “unconstitutional, unlawful, and fundamentally un-American”."

How can the Justice Department's Attorney General (AG) investigate a crime by the President if the President can fire him/her?  Who prosecutes the President for any crimes he might commit?

And if the AG is "in the pocket" of the President, as it appears Jeff Sessions will be / is, will Tweety Twump ever be challenged for any criminal act?

"United States Office of the Independent Counsel was an independent prosecutor — distinct from the Attorney General of the United States Department of Justice — that provided reports to the United States Congress under 28 U.S.C. § 595. The office was terminated in 1999 and replaced by the U.S. Department of Justice Office of Special Counsel." - from WikiPedia

https://en.wikipedia.org/wiki/United_States_Office_of_the_Independent_Counsel

The United States has a flawed justice / criminal system at the top,

I think appointing the AG to the President's Cabinet to lead the Department of Justice is a mistake and allows conflicting loyalties, to either the President or the judiciary.  The AG should be in an independent office altogether, help without prejudice so that the President cannot control the outcome of the AG opinions, policy, and positions on the legality of matters or criminality of actions and behaviors.

For example, Tweety Twump has conflicts of interest:

"US v Trump: Investigate the President-Elect"
Attorney General Lynch Should Appoint a Special Prosecutor Immediately

https://medium.com/@kfrydl/us-v-trump-investigate-the-president-elect-1a5aa4fe3816#.ie4oo7io1

"Few words capture the Watergate scandal as well as “US v Nixon,” the court case that pit Special Prosecutor Leon Jaworski’s pursuit of incriminating White House audio tapes against Richard Nixon’s claim of executive privilege to withhold them. Nixon’s lawyer asserted, in federal court, that the president was “as powerful as Louis XIV, only four years at a time,” one of the more interesting precedents ever invoked under American jurisdiction. Judge Sirica disagreed, and the US Supreme Court, not known for close adherence to the doctrine of the Divine Right of Kings, sided with Sirica. Nixon resigned sixteen days after the Supreme Court decision."

"As the United States prepares to transition from an Obama to Trump administration, the President-Elect has unnerved many with his advertised cabinet-level appointments. To date, none has stirred more opposition than his nomination for Attorney General, Senator Jeff Sessions, a man whose conduct as a US Attorney once prompted Senator Ted Kennedy to denounce him as a “disgrace.”"

"The first subpoena filed by an Independent Counsel should be to obtain Donald Trump’s tax returns; if Trump refuses to grant this or any other information to which the public or its representatives are entitled, then the case should move forward as US v Trump.

It would be something to see Trump invoke in a court of law the legacy of Louis XIV, as he did before the assembled journalists and editors of The New York Times, pronouncing, however less succinctly, that “it is legal because I wish it.” And it would be something more still to see the vestiges of a democratic republic, eroded by a war on drugs and a war on terror, consider the merits of this claim, which, by its nature, is the fundamental antithesis of the reasoning behind the Declaration of Independence, and, by virtue of its survival, has proved a surprisingly cunning rival to our system of government."

The AG, for example, would represent the people of the United States if Tweety Twump breaks the law.  BUT I do not think the AH should be elected.  An election means politics, and politics are too vulnerable to false agendas and corruption.

Here is an argument for election:

"Elect, don't appoint, the US attorney general" 
It's the AG's job to enforce the law, so it's a conflict of interest to have him appointed by the president."

By Nick Robinson January 30, 2009 

http://www.csmonitor.com/Commentary/Opinion/2009/0130/p09s01-coop.html

"It is the attorney general's responsibility to ensure that the laws of the country are enforced, including against the country's highest office holders. Yet, in our current system the attorney general's loyalty is torn between the laws he or she swears to uphold and the president."

This was in 2009.  Now it is 2017 and we see the flaw most obviously as Twump fires the AG.  The United States needs to go farther if our country seeks legality and justice.  There must be INDEPENDENCE, because without INDEPENDENCE you have politics and you will not have true justice. 

Have the Supreme Court Justices appoint the Attorney General.