If you want to understand why Trump won, it's useful to contemplate the squeals of protests against Attorney General Session's call that prosecutors actually go after criminals.
It's not just Holder throwing a hissy fit. Joining him are plenty of his useful idiots on the "right". These are the sorts of people who in the name of libertarian politics joined forces with the pro-crime left to free all the drug dealers under the guise of "sentencing reform" and "criminal justice reform".
(As an aside, when you see "reform" attached to anything these days, run.)
The pro-crime lobby, like the pro-ecohoax lobby and the pro-amnesty lobby, has a tougher time on the right. But you will still see these lobbyists making a "conservative" case for a carbon tax, illegal alien amnesty or freeing drug dealers. But not before they make a dozen misleading arguments.
Their advocacy has no traction among the conservative base, but quite a bit among the establishment. And it's a good thing that on domestic policy, they've been shut out at the DOJ. The bad news is that they're making inroads at the state level. The pro-crime lobby on the right is well funded. But what its funding managed to do was taint many of the GOP presidential candidates.
Trump however maintained a solid anti-crime record. And Sessions has a pretty solid one as well. His memo has infuriated the pro-crime lobby, but reassured anti-crime conservatives.
But it's important to remember that many local Republicans are being influenced by the pro-crime lobby. And they're getting into bed with the Holder pro-crime agenda. And that means freeing drug dealers and assorted career criminals who will go on to commit more crimes.