Spicer said the president has spoken with foreign leaders and industry leaders on the agreement, although he would not say whether the president has met or will meet with his cabinet on the matter.
"You have to have people who surround the president who are on his agenda".
Spicer took the podium on Monday praising Trump's "incredible, historic trip" overseas and hammering "fake news" from news reporters.
"I think the president's comments on this, that he will be making a decision in the next few days, stand", Spicer said.
"It's very important to know that I can be helpful on the outside, if they want me to be helpful on the inside, and the right role is there, I'd be willing to consider that", Lewandowski told Fox News.
Backchannels, or secret lines of communication, are often used by the White House as diplomatic tools.
Mr. Lewandowski said it would be easier for someone who has a "pre-existing" relationship with Mr. Trump to fill the role of White House communications director.
Cohen confirmed he had been asked to provide information and testimony to investigators in the U.S. House of Representatives and the Senate but said he declined because "the request was poorly phrased, overly broad and not capable of being answered", ABC reported.
Trump's original tweet, which was sent out shortly after midnight on Wednesday morning, simply read, "Despite the constant negative press covfefe". "Who can figure out the true meaning of "covfefe"???"
With new details regarding Trump's son-in-law Jared Kushner and Attorney General Jeff Sessions' alleged contacts with Russian Ambassador to the United States Sergey Kislyak coming to light, the White House has been inundated with questions regarding the controversy - which is understandable, given Trump team has been trying to brush it under the rug since Day 1.
Mike Dubke, the current communications director, announced Tuesday he would be leaving the White House in the near future for "personal reasons".
Just as Trump's election and first 133 days in office are unlike anything we have ever seen before, so, too, is the job Spicer is doing as press secretary.