The White House deputy national security adviser, Matthew Pottinger, is little known, but is considered one of the few "China passes" in the White House.

As a former China-based journalist, how did BoMing become Trump's number one "China Pass"?
Mr. Bo, 46, studied Chinese and China Studies at the University of Massachusetts in college and worked as a Reporter for Reuters and the Wall Street Journal in China from 1998 to 2005.
The most unusual turning point in Boming's career took place in 2005.
At the age of 32, he resigned as a correspondent in China to become a member of the U.S. Marine Corps. It's a tough workplace jump, with Boming on the high side, overweight, and a tough physical fitness test to enlist.
According to reports, Bo Ming met with a U.S. Marine to run on the Great Wall that year, and once collapsed into the emergency room.
In a 2005 opinion piece submitted to his old club, Mr. Boming wrote that when asked why he abandoned his pen, he usually gave a short answer: "It feels like it's time to stop reporting and get involved in news events more directly," but the process of brewing is obviously more complicated.
The atmosphere in which the United States was in full swing to combat terrorism infected BoMing, who lived overseas. After stumbling upon a video of an American citizen beheaded by Iraqi terrorists, he gradually made up his mind to join the military.
"We often talk about how our policies have radicalized young people in the Middle East into our enemies, but we rarely talk about how their actions have radicalized us."
After retiring from the military in 2010, Boming ventured into the business world, working for a hedge fund in New York and founding a business investigation company that investigated Chinese companies. He joined the NSC in 2017 to oversee Asia policy.
In his military life, Bo Ming met many hawkish officers, which further shaped his understanding of the international situation. As an intelligence officer for the Marine Corps, Mr. Boming was stationed in Okinawa, Afghanistan, and Iraq, japan, and later became friends with Mr. Flynn, who served as Trump's first national security adviser, and was deeply appreciated by former CIA Director Petraeus.
After Trump's victory, Mr. Boming joined Trump's transition team with Flynn and formally joined the National Security Council in 2017, becoming one of the few top officials in the White House with China's field experience.