The attack prompted the United States to fire 59 cruise missiles into a Syrian air base from which it said the attack was launched.
Haley said she thought a regime change would occur because "all of the parties are going to see that Assad is not the leader that needs to be taking place for Syria".
"You saw this bad tragedy on innocent people, a lot of them children, and the first reaction from Russian Federation wasn't 'how awful, ' it wasn't 'how could they do this, ' it wasn't 'how did this happen, ' it was: 'Assad didn't do it.' Why was that the reaction? I feel that was accomplished", she said.
Warplanes returned Saturday to the devastated Syrian town hit by chemical weapons earlier this week, despite a US missile strike on a Syrian air base that's now back in business.
"The United States took a very measured step last night", Haley said at the UN special session Friday.
China places its bomber aircraft on heightened alert
The attempt of the missile test was made amid the celebration of the anniversary of birth of North Korea's founding leader Kim Il-sung.
Referring to its defense of Syrian President Bashar al-Assad's regime, the group warned that they would support Syria and its people "with all means that we have". A White House official, speaking on condition of anonymity, said any difference in nuance was inadvertent and unintentional, and declined to comment further.
Tillerson spoke days before he will make the Trump administration's first official trip to Russian Federation, a staunch Assad ally. The Republican criticized calls by his Democratic opponent, Hillary Clinton, for the establishment of a no-fly zone and "safe zones" to protect non-combatants. And so what we're trying to do is obviously defeat ISIS.
Sir, what are we prepared to do if Russian Federation defends its interests in Syria? Al-Assad's government signed the Chemical Weapons Convention and agreed to turn over its chemical armaments in 2013, after being accused of a sarin attack outside Damascus that killed hundreds of people.
Lavrov also reaffirmed Russia's position that accusations that the Syrian regime had launched a chemical weapons attack on the Syrian town of Khan Sheikhun last week "are not in line with reality". On Sunday, a joint command center comprised of Russian, Iranian and militia forces supporting Assad said it would respond to any new aggression and increase its support for its ally.
"If Russia wants to be absolved of responsibility for future attacks, Vladimir Putin needs to enforce commitments, to dismantle Assad's chemical weapons arsenal for good, and to get fully engaged with the United Nations peacekeeping process", he wrote. He said that "no child of God should ever suffer such horror" and that the attack caused a "slow and brutal death for so many". My priority is now to continue contact with the USA and others in the run up to the G7 meeting on 10-11 April - to build coordinated global support for a ceasefire on the ground and an intensified political process. What we're saying is, other countries have to ask themselves some hard questions.
Henderson may not feature again for Liverpool this season
Liverpool boss Jurgen Klopp is unsure whether captain Jordan Henderson will be able to feature again this season. I would say it is very unlikely I will become a club-hopper all of a sudden.
"Ambassador Haley just said on your program, 'You'll never end the war with Assad in power, '" Graham said.
"And Secretary (of State Rex) Tillerson basically saying the same thing after kind of contradicting himself and then saying the same thing argues vigorously for a plan and a strategy", McCain added.
In the southern city of Daraa, jets believed to be Russian escalated strikes on Free Syrian Army (FSA) and jihadist groups on Saturday and Sunday in an attempt to roll back their gains in the Manshiya district where battles have been raging for almost two months.
Advisers said he was outraged by heartbreaking images of young children who were among the dozens killed in the chemical attack.
Ronald Koeman wants 'improved' top scorer Romelu Lukaku to stay at Everton
The Everton manager said: "It's OK if people talk about Arsenal and Man United - the name is a bigger one but not how they play. Earlier in the week West Ham fans heard Bilic refuse to rule out a move that would see Terry return to his east London roots.