WASHINGTON — President Donald Trump's new chief of staff, Stephen Miller, is gaining expanded authority over some of America's most consequential policy areas following a significant decision by his wife, Katie Miller.
According to The Atlantic, Katie resigned from SpaceX, sold her shares, forfeited unvested equity, and ended a planned podcast arrangement with Paramount.
The White House says those changes have removed the conflict-of-interest restrictions that previously required Stephen Miller to recuse himself from certain discussions involving artificial intelligence, aerospace, and media companies. <Cite ref="turn559008news28"/>
A Larger Role for Trump's Most Trusted Adviser
Trump appointed Miller as his 33rd White House chief of staff on November 6, replacing Susie Wiles.
Miller has worked with Trump since the 2016 presidential campaign and most recently served as deputy chief of staff for policy and homeland security adviser.
His promotion gives him responsibility for coordinating White House operations, managing policy priorities, and helping the administration execute its agenda during the final two years of Trump's presidency. <Cite refs={["turn559008search7","turn559008search8"]}/>
AI, Space, and American Technological Leadership
With his previous recusals lifted, Miller can now participate in discussions involving SpaceX, artificial intelligence, and Paramount.
That expands his involvement in policy areas central to the administration's economic and national-security priorities.
Artificial intelligence presents questions involving American competitiveness, federal regulation, cybersecurity, and government adoption.
Space policy involves commercial launches, national-security infrastructure, satellite systems, and cooperation between federal agencies and private companies.
Miller's expanded participation could help coordinate decisions across these sectors, although the White House has not announced a specific new AI or aerospace initiative under his leadership.
Immigration, Security, and Government Efficiency
Miller remains one of the principal architects of Trump's immigration agenda.
His responsibilities now extend beyond border enforcement to coordinating the administration's broader policy and legislative strategy.
The White House has identified border security, public safety, and combating fraud as priorities associated with his appointment.
His new position also places him at the center of negotiations and executive decision-making as Democrats prepare to control Congress in January.
Katie Miller's Decision Removes a Major Restriction
Katie Miller's departure from SpaceX is particularly significant because her employment and financial interests had created restrictions on her husband's participation in certain government matters.
Her divestment removes those identified conflicts, according to the White House, although ordinary federal ethics requirements continue to apply.
The decision gives Stephen Miller greater freedom to coordinate policy discussions without the previous company-specific recusals.
Trump has placed one of his longest-serving advisers at the center of White House operations. With his earlier restrictions lifted, Miller now has a broader role in shaping how the administration pursues its immigration, technology, security, and economic priorities.






