President-elect Donald Trump announced Tuesday he has picked ExxonMobil CEO Rex Tillerson to be secretary of state, calling him “among the most accomplished business leaders and international deal makers in the world.”

“Rex Tillerson’s career is the embodiment of the American dream. Through hard work, dedication and smart deal making, Rex rose through the ranks to become CEO of ExxonMobil, one of the world’s largest and most respected companies,” the president-elect said in an early morning news release from Trump Tower in New York.

Tillerson “knows how to manage a global enterprise, which is crucial to running a successful State Department,” Trump said. In a tweet, Trump added that Tillerson “has vast experience at dealing successfully with all types of foreign governments.”

In an accompanying statement, Tillerson said he was “honored” by his selection and shares Trump’s “vision for restoring the credibility of the United States’ foreign relations and advancing our country’s national security.”

But Tillerson has close ties to Russia and President Vladimir Putin, which is certain to draw scrutiny and fuel a potential Senate confirmation fight. Leading Republicans have already expressed anxieties as they contend with intelligence assessments saying Russia interfered with the US presidential election to help Trump.

Reince Priebus, Trump’s incoming chief of staff, said Tuesday that Tillerson was chosen because he is “a diplomat that happens to be able to drill oil.” Tillerson has “had to maintain relationships across the world in many places that aren’t the easiest places to have relationships,” Priebus said on MSNBC.

Trump has made it clear he sees Tillerson’s deep relations with Moscow as a selling point. As ExxonMobil’s head, Tillerson maintained close ties with Russia and was awarded by President Vladimir Putin with the Order of Friendship in 2013, an honor for a foreign citizen.

For weeks, Trump has teased out the secretary of state decision process publicly, often exposing rifts in his organization. Besides Corker, he also considered former Massachusetts Gov. Mitt Romney, a one-time vocal Trump critic. Romney wrote on Facebook Monday that it “was an honor to have been considered” for the job.

China responded to the news, with Chinese Foreign Ministry spokesman Geng Shuang saying “no matter who becomes the secretary of state, China looks forward to working with him in pushing for greater progress of China-US relations at a new starting point.”

“As we have repeatedly said, maintaining healthy and stable relations between China and the US accords with the fundamental interests of both countries and their peoples. We hope the foreign ministries of the two countries can strengthen communication and deepen cooperation in order to play an important and constructive role in the sustainable and stable development of China-US relations,” the spokesman said.

A native of Wichita Falls, Texas, Tillerson came to ExxonMobil Corp. as a production engineer straight out of the University of Texas at Austin in 1975 and never left. Groomed for an executive position, Tillerson came up in the world of oil production, holding posts in the company’s central United States, Yemen and Russian operations.

Early in the company’s efforts to gain access to the Russian market, Tillerson cut a deal with state-owned Rosneft. The neglected post-Soviet company didn’t have a tremendous amount to offer, but Exxon partnered with it “to be on the same side of the table,” Tillerson said, according to “Private Empire,” an investigative history of Exxon by Steve Coll.

(Story from The Associated Press)