Billionaire, libertarian activist, and philanthropist David Koch passed away at age 79.

David's brother, Charles, put out the following statement confirming the news on Friday morning:

"It is with a heavy heart that I announce the passing of my brother David. Anyone who worked with David surely experienced his giant personality and passion for life. Twenty-seven years ago, David was diagnosed with advanced prostate cancer and given a grim prognosis of a few years to live. David liked to say that a combination of brilliant doctors, state-of-the-art medications and his own stubbornness kept the cancer at bay. We can all be grateful that it did, because he was able to touch so many more lives as a result."

David Koch gave a lot of money to things like the New York Ballet and cancer research. He and his brother also bankrolled a lot of free-market and libertarian political causes and projects, which turned them into boogeymen in the eyes of the Left forever.

In the Twitter cesspool, a mob of blue-checked leftists descended shortly after the news to revel in the younger Koch's passing. Here's a sampling:

Wednesday on the radio, LevinTV host Mark Levin analyzed Attorney General Bill Barr's congressional testimony and his stated belief that the 2016 Trump campaign may have been illegitimately surveilled. Levin shredded the Democrats who want Barr to revise his statements and the apoplectic media that believes Barr is advancing a conspiracy theory.

"Don Lemon knows everything. Chris Cuomo. Jake Tapper ... they're the experts. And all the Democrats on these committees. They're the experts?! This will go down in history as a shameful, shameful period," Levin said.

Listen:

Thursday, on his nationally syndicated radio program, LevinTV host Mark Levin lit into the Democrats on the House Judiciary and Oversight Committees for their behavior at the questioning of FBI Agent Peter Strzok.

“Not only were they obstructing this hearing, they were praising Mr. Strzok,” Levin said.

Levin continued, “I remember the day when there were actually Democrat leaders, members of Congress, who were patriotic, I really do, who would not have put up with a senior FBI agent like this. And they would’ve been concerned about it. They would’ve been concerned about how senior officials of the FBI have poisoned the institution, undermining the other 20,000 or so employees at the FBI who are hard-working patriots, many of whom are heroes. They’d be appalled by this.”

Listen:

Levin made a point of distinguishing between the Federal Bureau of Investigation as a whole and upper-level agents like Strzok.

“Mr. Strzok and the other senior officials at the FBI targeted the Trump campaign and protected the Hillary campaign,” Levin concluded. “This is not in dispute, despite what the Democrats did at the hearing today, period. And we got to see Mr. Strzok, who is a weasel. He’s a complete weasel.”

House Democrats are committed to turning FBI Agent Peter Strzok's testimony before Congress into a clown show, interrupting the questions of their Republican colleagues and literally acting as a cheer squad for Strzok.

When House Oversight and Government Reform Committee chairman Rep. Trey Gowdy, R-S.C., attempted to ask Strzok a question about the number of people he interviewed in the first week of the FBI's Russian election interference investigation, Strzok refused to answer on the advice of the FBI's lawyers.

"Based on that, I will not answer that question because it goes to matters related to the ongoing investigation," Strzok said.

When House Judiciary Committee Chairman Bob Goodlatte, R-Va., attempted to force Strzok to answer the question, arguing he must do so because he was subpoenaed by Congress, Strzok denied that he had been subpoenaed, claiming he had come to testify voluntarily. That, of course, didn't sit well with the Republicans, who claimed Strzok had no "valid legal basis" for refusing to answer the question.

Then the Democrats did this:

Rep. Jerrold Nadler, D-N.Y., interrupted the questioning with several "point of order" interjections, which Goodlatte attempted to ignore. The Democrats contend that Republicans know they cannot ask questions about an ongoing federal investigation. The Republicans contend that they're not asking specific questions about the investigation, and therefore Strzok ought to be compelled to answer or be held in contempt of Congress.

In a very stupid moment, Rep. Sheila Jackson Lee, D-Texas, asserted that Strzok was invoking "attorney-client privilege" and therefore shouldn't be forced to answer Gowdy's question. That's an absurd objection. Strzok was not being asked to disclose information he holds in confidence with his lawyer. Goodlatte pointed out that Strzok isn't even talking about his personal lawyer but is referring to the FBI general counsel. Strzok was being asked about the timing of the FBI Russia investigation and when it began to interview people — a question that does not touch upon information about the investigation specifically.

Strzok ultimately refused to answer the question, and Goodlatte threatened to hold him in contempt of Congress.

In another stupid moment, Rep. Eric Swalwell, D-Calif., made a parliamentary inquiry that was ruled out of order about holding former Trump adviser Stephen K. Bannon in contempt of Congress for refusing to answer Gowdy's questions when he was under subpoena before the House Intelligence Committee.

This was all an attempt to disrupt the flow of Gowdy's questioning. When Gowdy finally managed to ask Strzok about his bias and the text messages vowing to "stop" Trump from becoming president, Strzok vehemently denied that his personal feelings affected the FBI investigations he was involved in.

Strzok claimed the "we'll stop it" text he sent to his lover, FBI lawyer Lisa Page, referred to Americans in general rejecting Trump at the ballot box. He said his text was "written late at night, off the cuff."

"It was in no way, unequivocally, any suggestion that me, the FBI, would take any action whatsoever to improperly impact the electoral process for any candidate," Strzok said, taking "great offense" to Gowdy's questions.

At the end of his answer, in which he accused the Republicans of attacking the FBI, Democrats erupted into applause.

The Democrats don't want answers from Strzok. It's clear from this hearing that they are there to protect him from tough questions from Republicans and cheer him on when he repeats their narrative about the Republicans undermining American democracy by questioning the FBI.