All the polls say the same thing: Donald Trump's rise is being fueled largely by white men who are angry with both political parties.

At this point 47% of Republican women say they will not vote for Mr. Trump, according to a Wall Street Journal/NBC poll.

So it is the guys who have catapulted the candidate to the top of the Republican primary pack.

According to the Washington Post, Donald Trump is favored by 50% of Republican voters who make less than $50,000 a year, most of them men.

Also, Mr. Trump is supported by just 32% of Republicans who have college degrees, according to polling from 20 Republican primary states.

So you can see that Trump's support is largely coming from working-class white men who feel aggrieved.

Now we've seen this before.  The black grievance industry is a powerful presence in America.

That group sells the notion that most problems in the African-American precincts are caused by white people and historical oppression.

While the media gives that view a lot of attention, most African-Americans reject the propaganda.

A recent study by the Kaiser Family Foundation says that 61% of American blacks believe the breakup of the African-American family is a major reason for the economic deprivation and social problems in the black community.

On the white side the issue is similar.

Many white Americans believe that illegal immigration hurts their job prospects and are angered by changing neighborhoods and social patterns.

Their refrain is often, I want my country back.

These voters are tired of seeing welfare doled out to people who are not motivated to succeed.

They are angry that terrorists are not being contained.

They see the Republican Party as largely cowardly in the face of political correctness.

The white grievance crew also believes they are being oppressed economically and that nobody is looking out for them.

Enter Donald Trump, who vividly reflects the anger, who has criticized his own party for being weak.

Now both the black and white grievance movements have some legitimate points.

There is no question that in poor black neighborhoods schools are generally deficient because the property tax base is low.

So poor black children are not being educated as well as affluent children.

That's true.

On the white side, here's a simple example: The Republican Party did not get behind Kate's Law, which would have harshly punished illegal alien felons who defy deportation.

While GOP senators like Grassley, McCain and Cruz did actively try to get Kate's Law passed, the Senate Majority Leader Mitch McConnell did not.

And in general Republican politicians did not raise the flag on this issue.

I mean, when you control both houses of Congress and you cannot get Kate's Law passed, there is a serious problem.

Again, Donald Trump has tapped into that chaos.

Going forward, Mr. Trump's nomination is not a lock.

He has made mistakes and will have to win over millions of Americans who do not believe he is qualified.

If you believe the polls, Mr. Trump is in for a rough day tomorrow in Wisconsin.

That being said, the issue of white grievance is not going away and Trump will maintain a loyal level of support.

Many of his supporters are furious, and if Mr. Trump does not get the nomination, the stay-home vote next November is likely to be substantial.

And that's the memo.