Rebel officials said that no official explanation had been given for the move this month following the jihadist assault.
Asked directly whether Trump's immigration policy was the right one, Assad did not answer. He also said he had not yet seen what Trump's Syria policy would be.
The Syrian president says no contact has been made with the Trump administration, but that he would accept U.S. troops in his country in alliance with Russia and the Syrian government under certain conditions.
In phone call, defense minister and Russia's foreign minister agree to continue their conversation at a meeting later this month.
Neither Israel nor any other country is intervening to put a halt to Assad’s resumption of control.
Speculation swirled in recent days on social media and some Arab news websites saying the president was in critical condition, citing rumors of stroke, or even that he had been shot.
WATCH Congresswoman Tulsi Gabbard Urges U.S. to End Support of 'Terrorists' in Syria After Meeting Assad
Hawaii Rep. Tulsi Gabbard tells Jake Tapper the Syrian conflict is 'a war between terrorists under the command of groups like ISIS and Al-Qaida and the Syrian government.'
The negotiations mark the first time the opposition and Assad's representatives have come together since talks in Geneva were suspended in early 2016.
The delegation will press the Assad regime on violations of the cease-fire and try to 'neutralize' Iranian influence during talks in Kazakhstan, officials say.
An international investigation finds that the decision to use chlorine bombs in 2014-15 came from the very top; the Syrian government maintains that ISIS is behind the attacks.