Rubio will vote to confirm Tillerson as secretary of state

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WASHINGTON, DC - JANUARY 10: Sen. Marco Rubio (R-FL) asks a question as FBI Director James Comey, Director of National Intelligence James Clapper, Central Intelligence Agency Director John Brennan and National Security Agency Director Adm. Michael Rogers testify before the Senate (Select) Intelligence Committee in the Dirksen Senate Office Building on Capitol Hill January 10, 2017 in Washington, DC. The intelligence heads testified to the committee about cyber threats to the United States and fielded questions about effects of Russian government hacking on the 2016 presidential election. (Photo by Joe Raedle/Getty Images)

WASHINGTON (CNN) — Sen. Marco Rubio, a key vote on the Senate Foreign Relations committee, said Monday he will vote for Donald Trump’s choice for secretary of state, all but guaranteeing former oil CEO Rex Tillerson is confirmed as the US chief diplomat.

“Given the uncertainty that exists both at home and abroad about the direction of our foreign policy, it would be against our national interests to have this confirmation unnecessarily delayed or embroiled in controversy,” Rubio said in a statement posted to his Facebook page. “Therefore, despite my reservations, I will support Mr. Tillerson’s nomination in committee and in the full Senate.”

Rubio’s support virtually ensures that Tillerson will win approval from the Senate Foreign Relations Committee later Monday and sets him up for a full Senate approval at some point soon after.

Through the past weekend, Rubio was one of just three Senate Republicans who had been withholding support for Tillerson over broad concerns about his ties to Russian President Vladimir Putin. But the two other holdouts — Sen. John McCain and Sen. Lindsey Graham — said Sunday they would support Tillerson.

Rubio’s decision comes after intense lobbying by the Trump administration, including a 90-minute meeting last week between Rubio and Tillerson, according to a Rubio adviser.

The Democratic National Committee quickly lashed out at Rubio on Monday, reviving Trump’s insult during the campaign for the Florida senator.

“By ignoring his serious reservations about Tillerson’s connections to Vladimir Putin, Marco Rubio is not only rolling over for Donald Trump, he’s earning the nickname Trump gave him: Little Marco,” DNC spokesman Zac Petkanas said in a statement.