The Oval Office generally maintains a rather formal air. But when Elon Musk's 4-year-old son, X Æ A-Xii (known as X), waltzed in on Feb. 11, he made himself right at home. As Musk greeted the press and talked about the new Department of Government Efficiency,

President Trump signed an executive order giving Musk's Department of Government Efficiency even more power to shape the federal workforce

President Donald Trump appears with Elon Musk in the Oval Office, a rare joint appearance between the Republican commander-in-chief and his most powerful adviser as they defended their actions to

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Grimes, Musk’s former partner and mother to three of his 12 children, was seemingly less than thrilled when she found out via social media about her son’s public appearance.

Grimes is speaking out about her desire to protect her children's privacy after a photo of her son with Elon Musk in the Oval Office went viral. The singer, whose real name is Claire Boucher, responded to the online buzz after images surfaced showing Musk and their four-year-old son,

ABC News reports on the first 30 days of billionaire Elon Musk advising President Donald Trump’s Department of Government Efficiency.

Donald Trump's desk in the Oval Office has been temporarily replaced a week after Elon Musk and his son, X, visited the White House, where the 4-year-old picked his nose near it.

Dispelling doubts, the billionaire showed off his unprecedented power to disrupt and remake the government — with President Trump’s blessing.

A video of billionaire Elon Musk appearing to walk away from his son X Æ A-Xii after an event has gone viral on social media.

Elon Musk, the world's wealthiest man, took questions for the first time since the president gave him broad authority to overhaul the executive branch.