The White House says President Donald Trump has decided not to attend a summit in South America this week to remain in the U.S.to manage the crisis.
"Our relationship with Russian Federation is worse now than it has ever been, and that includes the Cold War", Trump said.
The Russian military announced on Thursday that the Syrian government is now in full control of the last rebel-held town on the outskirts of Damascus that was the site of a suspected chemical attack over the weekend.
Reports suggested more than 500 people, mostly women and children, were taken to medical centres with difficulty breathing, foaming at the mouth and burning sensations in the eyes. "Even if the U.S. delivers a strike, this won't change the power balance in Syria", the MP said. A US Navy guided-missile destroyer, the USS Donald Cook, is in the Mediterranean.
President Trump on Tuesday warned that the US was prepared to take "forceful" action.
"We have proof that last week. chemical weapons were used, at least with chlorine, and that they were used by the regime of Bashar al-Assad", Macron said, without offering details of any evidence. He also charged that Russian President Vladimir Putin and Iran shared responsibility.
"Whenever the Syrian army achieves victory in the field, some western countries rise their voices and intensify their movements in an attempt to change the track of events", Assad said, according to SANA.
In an attempt to ward off USA action, Russian Foreign Minister Sergey Lavrov said Tuesday that Moscow would submit a United Nations resolution calling for an investigation to determine whether chemical agents were used in the attack last weekend.
Before and after aerials of the Syria strike
He can escalate, pulling the US military and his administration into a messy conflict that he recently said he wanted to abandon. On Monday, the Federal Bureau of Investigation raided Trump's personal lawyer, Michael Cohen's, homes and offices.
Monday's meeting took place following a suspected chemical attack by the Syrian government against people in Douma, Syria.
If the resolution failed to pass, it would show the aggressive aims of those states that block it, he said.
The Russian ministry said the situation in Douma was "normalizing".
Assad has been blamed for previous attacks by the Organisation for the Prohibition of Chemical Weapons (OPCW) and UN-backed war crimes investigators.
Moscow and Washington stymied attempts by each other at the United Nations Security Council on Tuesday to set up global investigations into chemical weapons attacks in Syria. The White House said he would consult further with allies.
"They agreed they would continue working closely together and with global partners to ensure that those responsible were held to account".
At the United Nations on Tuesday, Russia and western allies voted against each other's proposals for setting up a body dedicated to investigating repeated poison gas use in Syria. British officials said up to 75 people were killed.
Russian military personnel and members of the Lebanese Hezbollah militia are also believed to be stationed at the base.
After May met with her Cabinet, a spokesperson issued a statement saying it is highly likely that Syria's President Bashar Assad was responsible for Saturday's attack that killed dozens outside Damascus.
"There are no doubt Iranian facilities inside Syria that could be vulnerable to attack", said Winnefeld. Everybody's going to pay a price. Another humanitarian disaster for no reason whatsoever.