He said the polices followed by the successive US administrations post 9/11 with regard to Pakistan have not worked at all.
The United States is determined and committed to not allowing Pakistan to continue as a safe haven for terrorists from where they can attack the US and its allies, said the senior Trump administration official who spoke to a group of reporters on condition of anonymity.
"These (terror) sanctuaries really threaten stability in the region and they continue to fuel the overall terrorism problem that we're facing," he said.
Noting that the "previous administrations have tried to exercise what they might call strategic patience or offering inducements like the Kerry-Lugar-Berman bill which gave billions of dollars to Pakistan", the official said, stressing that none of it has worked so far.
Terrorists continue to operate freely inside Pakistan and there is a relationship between terrorist organisations and the Pakistani establishment, he said.
"This administration believes it's time to try something different. And we believe we owe it to the Americans in harm's way in Afghanistan. We simply cannot ignore the terror sanctuaries (in Pakistan) if we're going to make progress in Afghanistan," he said, adding that "the president has been very clear about his commitment to stabilising Afghanistan".
Last week, the Trump administration suspended approximately $2 billion in security assistance to Pakistan, resulting in an outrage from Islamabad. Pakistan's Foreign Minister, in an interview to The Wall Street Journal, had said that America was no longer an ally of Pakistan.
The policy is not about looking at Pakistan through the lens of Afghanistan, but it is about looking at the entire region and the future of the United States, he said.
"9/11 attacks you know had their roots in this region. We've invested a lot of blood and treasure in Afghanistan. We are committed to not allowing the Taliban to dominate Afghanistan and we are committed to not allowing Afghanistan or Pakistan to become a safe haven from which terrorists can attack the US and its allies," the official said.
"So, I wouldn't classify it is looking at Pakistan through the Afghanistan lens. I think that's too narrow a viewpoint. I think this is about the region and the future of the region. And the fact that these continued sanctuaries really threaten stability in the region and they continue to fuel the overall terrorism problem that we're facing," he said.
Former Speaker of the United States House of Representative, Newt Gingrich, in an interview to AM970 in New York had said that Donald Trump has "shocked the elites" by freezing US aid to Pakistan.
"It has so thoroughly shocked the elites that we actually are going to protect America, and defend America, and that we're actually going to render judgement," he said.
"If you kick us in the shin, we're not going to pay you," Mr Gingrich said.