Today, for the third time, it was Elon Musk to the rescue.

Let’s start with part one: Last December, while speaking of Build Back Better, Mr. Musk said: “I would just can this whole bill…. It might be better if the bill doesn’t pass because we’ve spent so much money, you know, it’s like the federal budget deficit is insane.”

In other words, he helped to Save America and Kill the Bill. Thank you, Elon.

Then, a month ago, he said, “Hate to say it, but we need to increase oil and gas output immediately.” 

Thank you again, Elon.

Today, we learned that Mr. Musk is riding to the free speech rescue by staking out a 9 percent investment in Twitter, which will make him the largest shareholder. At least theoretically, that means he can kick Twitter’s free-speech-suppressing, left-wing butt. 

We learned today that the Twitter share purchase began March 14. On March 25, Mr. Musk posted a poll on Twitter asking:

“Free speech is essential to a functioning democracy, do you believe Twitter rigorously adheres to this principle?” Just 29.6 percent said “yes,” while 74 percent said “no.”

He commented the next day, saying Twitter “failing to adhere to free speech principles fundamentally undermines democracy.” He got that totally right.

Mr. Musk is essentially putting his own money where his mouth is. And that is a wonderful thing. Mr. Musk bought 73.5 million shares, now worth about $3.7 billion.

Twitter’s shares rose 28 percent by mid-day on the news, representing an $800 million gain from Friday.

I’m sure Senators Sanders and Warren are licking their chops to tax Mr. Musk’s unrealized capital gains.

These numbers are approximations based on reports, but I’m sure it’s good enough for government and TV work. And perhaps the most important point is that Mr. Musk has sent one gigantic global shot across the bow against the unrepenting left-wing media, to which I say: “Beware, the cavalry is coming.”

Also, let me just say that while I had some dealings with Mr. Musk in the government, I have no idea if he’s a Republican or Democrat or has any party affiliation or is even registered to vote.

What I do know is that when you look at his record of public pronouncements over time, he seems to be a libertarian who believes in free markets and free speech. And in the last year or so, he has added a lot of common sense to public policy discussions. 

This is not the first time I have praised Mr. Musk, and I’m certain it won’t be the last. We need 100 more principled people like him — actually, make that 1,000. So thank you for saving America, Elon.

From Mr. Kudlow’s broadcast on Fox Business News.