Who Could Replace Tulsi Gabbard as Next Director of National Intelligence?

Tulsi Gabbard’s resignation as Director of National Intelligence (DNI) has opened a major vacancy inside the Trump administration’s national security team.

Gabbard resigned last week, saying in a resignation letter that she was stepping down to care for her husband, Abraham Williams, after he was diagnosed with “an extremely rare form of bone cancer” and that he would face “major challenges in the coming weeks and months.”

Privately, however, multiple reports indicated that her departure followed months of internal tension, political isolation, and growing frustration within the Trump administration over her role in national security policy. Gabbard, when in office as a Democrat and when she ran for president as a party member, was staunchly anti-war yet has remained mostly quiet publicly since the United States and Israel struck Iran in late February.

Gabbard announced that her resignation would take effect on June 30, 2026. President Donald Trump publicly praised her service and named Deputy Director Aaron Lukas as acting director. Lukas will temporarily oversee the Office of the Director of National Intelligence, which coordinates the work of 18 separate intelligence agencies across the federal government.

Attention has already shifted toward who could permanently oversee the nation’s intelligence apparatus.

Gabbard’s DNI Tenure Faced Constant Controversy

Gabbard entered the intelligence role as one of Trump’s most unconventional cabinet picks.

She is a former Democratic congresswoman from Hawaii, a 2020 presidential candidate, and an Army National Guard officer who served in Iraq and Kuwait. Gabbard brought military and foreign policy experience to the position despite lacking a traditional intelligence agency background.

She’s also faced years of criticism over her 2017 meeting with Syrian President Bashar al-Assad and comments that critics viewed as sympathetic to Russian geopolitical interests.

During her tenure, she pursued aggressive restructuring within the Office of the Director of National Intelligence. She reduced staffing levels and pushed investigations into issues such as COVID-19 origins and prior Russia-related intelligence assessments.

Her critics argued that she blurred the line between intelligence work and partisan politics. Supporters, meanwhile, claimed she was attempting to reform agencies they viewed as overly bureaucratic and politically entrenched.

Who Is Acting DNI Aaron Lukas?

Unlike Gabbard, whose background came largely from politics and military service, Lukas built most of his career inside the national security and intelligence world.

According to the Office of the Director of National Intelligence, Lukas previously worked at the CIA before serving in senior national security roles during Trump’s first administration. He later became principal deputy DNI under Gabbard earlier this year.

Lukas has also worked on the National Security Council, including assignments focused on Europe and Russia. His career path makes him a far more traditional intelligence official than Gabbard, whose appointment drew attention because of her outsider status and high political profile.

Gabbard brought military operational experience to the role despite lacking a traditional intelligence agency background. During the nomination process, her military service and anti-interventionist foreign policy views made her one of Trump’s most unconventional national security selections.

Her relationship with the administration allegedly deteriorated after disagreements over Iran intelligence assessments, according to reports. Earlier this year, Gabbard testified that the intelligence community did not believe Iran was actively building a nuclear weapon—a position that clashed with the White House’s more aggressive rhetoric about an imminent Iranian threat.

Lukas Could Offer Stability After a Turbulent Period

Gabbard’s tenure as DNI became increasingly controversial during her final months in office.

Reports indicated she was excluded from key national security discussions involving Iran and Venezuela while CIA Director John Ratcliffe became more influential inside the White House.

That backdrop could work in Lukas’ favor. Unlike Gabbard, he does not carry the same level of public political controversy or name recognition. His experience inside the intelligence community may make him appealing to White House officials looking for a lower-profile administrator capable of stabilizing relations between the administration and intelligence agencies.

At least in the short term, the acting appointment also avoids a potentially contentious Senate confirmation battle while Trump considers longer-term options.

Trump May Look for a More Traditional Intelligence Leader

The White House has not identified a permanent nominee, but several possibilities already appear likely based on Trump’s recent national security priorities.

One option would be for Trump to nominate Lukas permanently. Since Lukas already holds the number-two position at ODNI and has prior CIA and National Security Council experience, he could present a comparatively straightforward confirmation process.

Another possibility is that Trump could elevate someone already closely aligned with his foreign policy approach. Ratcliffe’s influence reportedly grew during Gabbard’s final months as DNI, fueling speculation that Trump may favor candidates with stronger institutional intelligence backgrounds and closer alignment with his current national security strategy.

Trump could also look toward former military or intelligence officials from his first administration, particularly individuals viewed as loyal to his broader foreign policy agenda. National security appointments inside the Trump administration have consistently emphasized political alignment and personal trust alongside traditional intelligence credentials.

Next DNI Could Shape Foreign Policy

The transition comes during a period of growing geopolitical tension involving Iran, China, Russia and Venezuela.

Whoever ultimately becomes DNI will likely play a major role in shaping how intelligence reaches the White House and how aggressively the administration responds to emerging threats.

The position itself has grown increasingly political in recent years as intelligence assessments have become more publicly tied to debates over foreign intervention, election security and domestic extremism. Gabbard’s tenure reflected many of those tensions, particularly as disagreements reportedly emerged between her office and other senior administration officials.

Trump’s next selection may reveal whether the administration plans to continue that outsider approach or return to a more conventional intelligence structure.