PLO official “emphasized that it is necessary to escalate the intifada and the resistance in all of its forms” in response to Trump’s recognition of Jerusalem as Israel’s capital
Wattan (independent Palestinian news agency)‎ - Feb. 5, 2018

 
Headline: “Wasel Abu Yusuf: The Palestinian people and its leadership are capable of thwarting all of the American attempts”

“Secretary-General of the Palestinian Liberation Front and PLO Executive Committee member Dr. Wasel Abu Yusuf… warned against [US President Donald Trump's] deal of the century whose goal is to eliminate the Palestinian cause through American decisions and reduce Washington’s aid to UNRWA (UN Relief and Works Agency for Palestine Refugees in the Near East). He emphasized that the Palestinian people everywhere it is located adheres to the right of return, to the fact that Jerusalem is the capital of Palestine and that it is necessary to deal with the dangers surrounding the issue – and particularly to all that concerns the American recognition of Jerusalem as the capital of the occupation entity…
Abu Yusuf emphasized that it is necessary to escalate the intifada and the resistance in all of its forms (‎i.e., term used by Palestinians, which also refers to the use of violence and terror‎) against the occupation, until [US President Donald] Trump’s decision is brought down. He also emphasized that the people and factions will thwart the deal of the century, and that all of the plans to eliminate the Palestinian cause will receive a response.”

In early January 2018, the US froze two planned payments to UNRWA (UN Relief and Works Agency for Palestine Refugees in the Near East) for more than $100 million, and the US administration spoke about the need to reexamine and conduct a reform of the UN body. This occurred after the PA refused to negotiate with Israel and cut diplomatic ties with America following US recognition of Jerusalem as Israel's capital on Dec. 6, 2017.

US recognition of Jerusalem as capital of Israel - On Dec. 6, 2017, US President Donald Trump formally recognized Jerusalem as Israel’s capital and instructed the State Department to begin preparations to transfer the US embassy from Tel Aviv to Jerusalem. Trump added that the final borders of Jerusalem will be determined during negotiations.

The terms "all means”, "all means of resistance," “all forms,” are ‎used by PA leaders to include using all types of violence, including deadly terror ‎against Israeli civilians such as stabbings and shootings, as well as throwing rocks and Molotov Cocktails.