Beijing, Aug 21 (IANS): The Chinese Foreign Ministry on Friday urged the United States parties to abide by the one-China principle, the provisions of the three China-US joint communiques, and handle Taiwan-related issues prudently and properly.

The 2020 Democratic Party's platform for the upcoming election, adopted at its National Convention on Thursday, no longer includes an endorsement for the one-China principle, a change compared with 2016, Xinhua news agency reported.

The Republican administration has also taken a hard line on China-related issues, including those on Taiwan.

Responding to a query about whether China is concerned that the developments may signal a tougher stance on China from both the US political parties, spokesperson Zhao Lijian told the media that China's position on Taiwan is "consistent and clear."

"The Taiwan's question is the most important and sensitive issue in China-US relations. The one-China principle represents the political foundation underlying our bilateral ties, and also the common consensus of the international community," Lijian said.

"We urge the relevant parties to earnestly abide by the one-China principle and the provisions of the three China-US joint communiques, and handle Taiwan-related issues prudently and properly," added the spokesperson.