“Marco Rubio, unbelievable,” Trump said Thursday before announcing on social media that Waltz would be nominated as ambassador to the United Nations and Rubio would take over as national security adviser in the interim. “When I have a problem, I call up Marco, he gets it solved.”
Yet Rubio has been resilient. And as of Thursday, he oversees both the State Department and the National Security Council, which is responsible for coordinating all executive branch foreign policy functions, ranging from diplomatic to military and intelligence operations.
Thomas Wright, an NSC official during the Biden administration who is now a senior fellow at the Brookings Institution, said the national security adviser post alone is “more than a full-time job.”
“It is just very hard to comprehend the idea that you can do this job sort of part time,” Wright said.
He said he watched national security adviser Jake Sullivan and his deputy work 14-15 hour days, six to seven days a week: “I think they felt that they had to do that to do the job properly.”
But as he marked the first 100 days of Trump’s latest term, Rubio applauded the president for his vision.
“I am honored by the trust President Trump placed in me and I am proud of the work the Department of State has done over the past hundred days to implement his agenda and put the American people first,” he wrote Wednesday in a State Department Substack post.
One of Rubio’s former Florida statehouse colleagues, Dan Gelber, a Democrat, said of Rubio’s increasing responsibilities that “Marco is probably, to a certain extent, one of the more reliable Cabinet officers, if not the most reliable.”
“And I can only believe those qualities are even more vital to his current confluence of positions and growing portfolio,” Gelber said. “He’s not a chaos guy, and I’ve always sort of wondered how he’s going to do in an administration where there seems to be so much chaos. And maybe that’s why he’s getting all these positions.”
In many ways, Rubio and Witkoff are following in the footsteps of Trump’s son-in-law Jared Kushner, who had multiple roles in the first administration, ranging from the Middle East to Latin America and immigration.
State Department officials appeared taken aback by Trump’s appointment of Rubio as acting national security adviser. Spokeswoman Tammy Bruce said at a briefing Thursday that she learned the news from a journalist who asked her a question about Trump’s post minutes after it appeared on social media.
Officials, however, have noted that Rubio in recent weeks has spent an increasingly large amount of time at the White House away from his posh seventh-floor State Department office in what is known as “Mahogany Row,” a corridor known for its wood paneling.
At the same time, these officials, who spoke on condition of anonymity to discuss the personnel shift, said they did not expect Rubio’s duties as secretary of state to change significantly. He still plans to travel on diplomatic missions abroad and likely will delegate at least some of the NSC management to others, they said.
