President-elect Donald Trump took to YouTube on Monday to reaffirm his agenda for his first 100 days in office, including withdrawing from the Trans-Pacific Partnership.

“My agenda will be based on a single core principle — putting America first,” Trump declared in the video.

Calling the TPP a “potential disaster” for the US, he said his administration would notify other nations of its intent to withdraw.

Trump also said he would be taking executive actions on “day one” to fulfill campaign promises.

Among other actions he outlined were examining abuses in the US visa program; lifting “job-killing” restrictions on the shale industry; reducing federal regulations by requiring that two be abolished for every new one created; and banning members of his administration from becoming lobbyists for five years after they leave.