Attorney General Jeff Sessions has been implementing big changes at the Justice Department. Here's what you need to know about the former senator and early President Trump supporter. (Thomas Johnson/The Washington Post)

Donald Trump’s appointment of Sen. Jeff Sessions (R-Ala.) as attorney general does a lot to signal the president-elect wants a no-nonsense, by-the-book Justice Department. Sessions has been my friend for 30 years and my senator for 20 years. His Justice Department will not meddle with local governments, it will be respectful and deferential to state legislatures and it won’t look to make trouble with universities, school systems or private businesses.

Importantly, Sessions’s appointment tells the United States’ beleaguered law enforcement agencies help is on the way. It also shows Trump wants to strike a blow to the corrosive, pretentious, sanctimonious political correctness his voters soundly rejected on Nov. 8.

By making the appointment, Trump is confirming he dismisses the residual effects of the decades-old smear campaign the Democrats ran against Sessions when his nomination to be a federal judge was before the Senate for confirmation in 1986. It turns out the gods — with Donald Trump’s help — are continuing to vindicate Sessions, who was attacked with condescending stereotypes Southerners and fair-minded people everywhere reject. Because of the Democrats’ efforts to discredit him, Sessions wasn’t confirmed — but that same man was elected to the Senate, served with distinction on the Senate Judiciary Committee and now, it appears, will be America’s next attorney general.

It is also safe to assume that Sessions will be in the first chair when it comes to advising Trump on judicial appointments, and you can be sure that he will recommend real judicial scholars — proven conservative judges and lawyers who have practical experience and a common-sense approach to interpreting the law as it is written and as it was intended. Laws will be enforced — not created — in a Sessions Justice Department.

Jeff Sessions will be one of the adults in the room. He is tireless, studious, good-natured and a patriot. He does Alabama proud. Roll Tide!