U.S.: No change in China policy

President Barack Obama's administration reaffirmed the U.S.' one-China policy on Monday in the wake of president-elect Donald Trump's phone call with Taiwan leader Tsai Ing-wen last Friday.

After taking much heat from China and many foreign policy experts in the U.S., Trump tweeted on Sunday: "Did China ask us if it was OK to devalue their currency (making it hard for our companies to compete), heavily tax our products going into their country (the U.S. doesn't tax them) or to build a massive military complex in the middle of the South China Sea? I don't think so!"

Asked if there is any change of impression regarding Trump following the phone call and his latest tweets, Chinese Foreign Ministry spokesman Lu Kang said in Beijing on Monday: "We never comment on other countries' politicians and their personalities. We focus on their policies, especially policies toward China."

White House Press Secretary Josh Earnest reiterated on Monday that the U.S. is committed to the one-China policy, saying it is a policy that's been in place for almost 40 years and a policy that is aimed at promoting peace and stability across the Taiwan Straits.

Earnest would not comment on the possible strategy pursued by the next administration. "I am not sure how that benefits the United States. I'm not sure how that benefits the United States relationship with Taiwan. I am not sure how that benefits the Taiwanese people. I am not sure how that benefits the U.S. relationship with China," he said of Trump's latest behavior.

State Department deputy spokesman Mark Toner made similar comments on Monday at the daily briefing. He credited stable and peaceful cross-Straits relations since 1979 to the fact the U.S. has been pursuing the one-China policy.

"That has not changed previous to or since the phone call by the president-elect," he said.

"It's only through consistency and implementing this policy, standing by this policy, you have, I said, stable cross-strait relations," he added.

U.S. vice-president-elect Mike Pence on Sunday downplayed the conversation with Tsai, saying it was a "courtesy" call and not intended to show a shift in U.S. policy on China, according to foreign media reports.

Jeffrey Bader, a senior fellow at the John L. Thornton China Center of the Brookings Institution and a former Obama administration official, described Trump's phone call as heightening concerns about his foreign policy deftness.

"There are serious risks posed by his failure to take briefings by government professionals, and he appears to have little respect for the potential damage of actions taken without understanding long-standing U.S. national security concerns," Bader wrote on the Brookings website.

"It has always been understood that direct conversations would cross a line not worth challenging," he said.

Bader explained that the U.S. government does not suddenly, without preparation or reflection, change essential features in a framework that has served U.S. interests, those of Taiwan and those of the U.S.-China relationship. "And most importantly, that has kept the peace in the region," he said.

Ruan Zongze, vice-president of the China Institute of International Studies, said there is no need to over-interpret Trump's tweets. "We should still wait and see whether they will turn (that) into policies after Jan 20, when he is sworn in."

Shi Yinhong, a professor of international relations at Renmin University of China, said: "We hope China-U.S. relations will remain stable during Trump's term. However, we should be mentally prepared for one thing, that is the huge impact on bilateral trade and economic ties possibly brought by Trump's administration."