Republican Senator Marco Rubio was confirmed as the new U.S. secretary of state on Jan. 20, becoming the first member of President Donald Trump’s new cabinet.

In a rare display of bipartisan consensus, Rubio was confirmed just hours after Trump was sworn in for a second term in the White House.

As state secretary, Rubio will oversee the implementation of Trump’s foreign policy, including that relating to Ukraine and Russia’s full-scale invasion — neither of which were directly referred to by the new president during his inauguration speech.

Since Rubio was nominated for the position in early November, the signals coming from Trump and those around him about how the war in Ukraine might end have shifted dramatically, going from a swift end in “in 24 hours,” to a much more drawn out process that could take “100 days.”

“​​It’s a complex conflict and a bloody one, and it needs to end,” Rubio said after being confirmed.