“I congratulate John Sullivan on the fact that today he was approved for the post of US ambassador to Russia,” Pompeo wrote on his Twitter.

Congratulations to John Sullivan on his confirmation as US Ambassador to #Russia today. I'm confident his experience and diplomatic acumen will be an asset as we work to strengthen cooperation and build a constructive relationship with Russia.

- Secretary Pompeo (@SecPompeo) December 12, 2019

The Secretary of State expressed confidence that Sullivan’s experience and diplomatic flair will help build constructive relations with Russia.

Earlier, the US Senate approved the candidacy of John Sullivan for the post of ambassador to Russia.