Elon Musk and President Donald Trump are fighting again. Now Musk’s business interests — and the billions in government contracts they enjoy — are once again in the crosshairs.

Investors were already punishing Tesla on Tuesday, sending shares in the electric carmaker more than 4% lower in afternoon trading. The stock has experienced a late-spring rally alongside the broader market but remains down some 20% so far this year. The shares have been pummeled by a global backlash to Musk’s alliance with Trump on the campaign trail and in the White House, where the multibillionaire led a sweeping program of government cuts

Musk acknowledged there had been “some blowback” to the actions taken by his Department of Government Efficiency project that may have affected Tesla sales. Yet investors remain largely bullish on the company and its efforts to pivot away from mass-market EVs and toward self-driving taxis and robotics, pushing its market valuation back toward $1 trillion.

Tesla remains Musk’s best-known business, but its fortunes are less directly tied to the government than SpaceX, his rocket-building company. SpaceX’s $350 billion valuation largely rests on the many government contracts that fuel it. SpaceX’s work for NASA has ramped up in recent years in support of the Artemis mission to return to the moon.

Meanwhile, SpaceX’s Dragon spacecraft is currently the only active vessel capable of carrying astronauts to and from the International Space Station. SpaceX has also become essential to the Department of Defense’s missions taking satellites into orbit and today is responsible for the majority of such missions, according to Ars Technica.

SpaceX is privately held, meaning its shares don’t trade on the open market. It is thus difficult to get a real-time gauge on how worsening relations could affect the company’s fortunes. But the impact could be substantial. Since fiscal year 2000, total revenue for SpaceX and Tesla from federal unclassified contracts sits at $22.5 billion, according to Bloomberg Government data — with most of those going to the former. The Washington Post has put the figure for SpaceX alone at close to $38 billion, with $6.3 billion alone coming in 2024 — the highest annual total to date.

The dispute with Trump has also taken a chunk out of Musk’s personal net worth. After soaring to an all-time high of nearly half a trillion dollars after Trump’s election win, Musk’s publicly available wealth tally now sits at $400 billion, though that still makes him the world’s wealthiest individual by nearly $150 billion ahead of Oracle founder Larry Ellison, another Trump ally.

The Musk-Trump tiff first exploded into public view last month, shortly after Musk formally stepped down from his special government employee role and criticized the massive spending and tax cut bill that Republican senators passed Tuesday. Trump responded at the time by threatening to “terminate Elon’s Governmental Subsidies and Contracts.”

Musk, in turn, said he would begin “decommissioning” the Dragon, only to reverse course hours later after an X user advised him and Trump to “cool off and take a step back for a couple of days.”

Before their initial flare-up subsided, Musk announced he would be reining in his political spending weeks after a candidate he had backed lost a key Wisconsin Supreme Court race. Some analysts believe the current relapse in tensions between the two men will be short-lived given Musk’s reliance on the government, and vice-versa.

Still, Musk is now discussing launching his own political party to address the U.S.’s fiscal imbalances, which he believes Trump’s bill will exacerbate — a contention supported by the nonpartisan Congressional Budget Office. While the South Africa-born executive is ineligible to run for office, any candidate he backed for national office would likely face immediate conflict-of-interest questions.

Apple has accused a former engineer for its Vision Pro headset computer of stealing company trade secrets before starting a new job at Snap, according to a lawsuit filed in California last week.

In the June 24 court filing, Apple accuses Di Liu, a senior design engineer, of downloading thousands of documents in his final days at the Cupertino company last year and saving them to his personal cloud accounts.

This lawsuit is the latest example of Apple publicly going after a former employee for leaking internal information. Apple is an intensely secretive company, and lawsuits like this one highlight how the iPhone maker exercises tight control over its internal information, even if it has to pursue legal action against former staff.

Apple alleges that Liu didn’t inform the company when he resigned late last year that he was headed to Snap, a competitor and maker of smart glasses. As a result, Apple did not shut off his access to accounts and allowed him a customary two-week transition period, which he used to download company files, according to the lawsuit.

“Worse still, the review of Mr. Liu’s Apple-issued work laptop also shows that while maintaining access to Apple’s Proprietary Information under false pretenses, he used his Apple credentials to exfiltrate thousands of documents containing Proprietary Information from Apple’s secure file storage systems,” the iPhone maker’s lawyers said in the filing.

Many of the files downloaded by Liu had codenames for Apple projects and described the company’s technology, product design and supply chain, according to the lawsuit. Apple says that all employees agree to keep Apple files confidential and that Liu broke confidentiality agreements he made when he joined. Liu worked for Apple between 2017 and 2024, according to the lawsuit.

Liu worked on Apple’s Vision Pro headset as a system product design engineer, per the filing. Liu did not respond to a request for comment from CNBC.

Apple lawyers wrote that Liu could use the trade secrets in his work at Snap. Apple is not suing Snap, and the social media company did not respond to a request for comment.

“The overlap between Apple’s Proprietary Information that Mr. Liu retained and Snap’s AR products (for which Mr. Liu is a ‘product design engineer’) suggests that Mr. Liu intends to use Apple’s Proprietary Information at Snap,” according to the filing.

Apple is seeking damages and for Liu to have his devices inspected by a forensic examiner to make sure all the trade secrets are deleted.

The iPhone maker has sued several former employees in recent years for taking files when they left the company.

Apple settled with former engineer Simon Lancaster in 2022 over providing information to a journalist. Apple also sued a former employee, Andrew Aude, in 2024 over leaking details to the media. That lawsuit was dismissed after Aude apologized.

The Cupertino company sued Rivos, a chip startup staffed by former Apple semiconductor employees, over its intellectual property, and settled in 2024.

Additionally at least three former Apple employees have also been arrested and accused by the government of taking company secrets and giving them to China-linked organizations. One pled guilty and was sentenced to four months in prison, and two are still in proceedings.

Clean energy stocks fell Monday as President Donald Trump’s spending legislation now includes a tax on wind and solar projects using Chinese components and abruptly phases out key credits.

Shares of NextEra Energy, the largest renewable developer in the U.S., fell 4%. Solar stocks Array Technologies, Enphase and Nextracker were down between 1% and 9%.

The Senate is voting Monday on amendments to the legislation. The current draft ends the two most important tax credits for solar and wind projects placed in service after 2027.

“The latest Senate draft bill will destroy millions of jobs in America and cause immense strategic harm to our country,” Tesla CEO Elon Musk posted on X over the weekend. “Utterly insane and destructive. It gives handouts to industries of the past while severely damaging industries of the future.”

Previous versions of the bill were more flexible, allowing projects that began construction before 2027 to qualify for the investment and electricity production tax credits, according to Monday note from Goldman Sachs.

The change “compresses project timelines and adds significant execution risk,” Bank of America analyst Dimple Gosal told clients in a note Monday. “Developers with large ’25 pipelines, may struggle to meet the new deadlines — potentially delaying or downsizing planned investments.”

The Senate legislation also slaps a tax on solar and wind projects that enter service after 2027 if they use components made in China.

“The latest draft in the Senate has become more restrictive for most renewable players, moving toward a worst case outcome for solar and wind, with a few improvements for subsectors on the margin,” Morgan Stanley analyst Andrew Percoco told clients in a Sunday note.

To be sure, the rooftop solar industry is viewed by Wall Street as a relative winner from the bill, with Sunrun shares up more than 13% and SolarEdge trading more than 6% higher on Monday. The legislation seems to allow tax credits for leased rooftop systems to remain in place through the end of 2027, which was not the case in previous versions, according to Goldman Sachs.

And First Solar is up more than 9% as the legislation seems to allow the manufacturer to claim credits for both components and final products, according to Bank of America.