Gary Cohn, the former top economic adviser to President Trump and former president of Goldman Sachs, tweeted Tuesday that he is joining IBM as vice chairman.

The big picture: Cohn, a Democrat, was considered one of the most powerful "globalists" in Trump's West Wing. He disagreed with Trump on just about every issue besides tax cuts and resigned in 2018 after a struggle inside the White House over tariffs on steel and aluminum imports.

Between the lines: Cohn will report to IBM's chairman and CEO Arvind Krishna, who a spokesperson said has sought to "re-make" the company with a focus on revenue, hybrid cloud technology and AI since taking over in April. Cohn will remain co-chairman of his special purpose acquisition company, Cohn Robbins Holding Corp.

What they're saying: "I am honored to be joining IBM as Vice Chairman. IBM is one the world’s most important companies, providing technology that helps organizations be agile and resilient in unpredictable times," Cohn tweeted.

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