"We're not there yet, but as I said today, we're inside the 10-yard line and the president understands the need to finish the job", he added.
Following the Kurds" liberation of Manbij from IS in August 2016, Turkey invaded Syria in a military operation dubbed "Euphrates Shield', capturing a swath of territory in the north. Mediation by Russian Federation and the United States prevented a direct conflict between the Turkish-backed militias and Kurds in Manbij at the time, but Ankara has continued to insist on a Kurdish withdrawal beyond the Euphrates ever since.
US-backed Kurdish militia has begun to withdraw from Manbij in northern Syria, inviting the Syrian army to move in as Turkey masses troops on the border.
Critics also contend the U.S. withdrawal would embolden Iran and Russian Federation, which have supported the government of Syrian President Bashar al-Assad.
"I share his goal to withdraw our forces from Syria; I just want to do it in a smart way, make sure Iran is not the big victor", Graham told reporters outside the White House.
On Tuesday, Secretary of State Mike Pompeo met with Israeli Prime Minister Benjamin Netanyahu in Brasilia, where both men were attending the inauguration of new Brazilian president Jair Bolsonaro.
Some critics also have expressed fear of a rapid withdrawal of US troops.
Trump's decision to exit Syria was widely criticized for leaving America's Kurdish allies exposed to an attack by Turkey in the city of Manbij. "You know, when we send 30 F-18s in front of them, they fight much better than they do when we don't". "The pause is to assess the effects of the conditions on the ground".
"We talked about Syria and he told me some things I didn't know that make me feel a lot better about where we're headed in Syria", the SC lawmaker said of his meeting with Trump.
Still, Graham said, Trump remains committed to bringing American service members home, even as he continues to weigh the greater regional dynamics.
Asked about the timetable for withdrawing from Syria, Trump gave no specific timeline, but also did not back up claims made by Sen.
However, in a tweet early Monday, Trump seemed to signal a more cautious schedule for pulling out the troops which support local forces.
Nevertheless, Trump's latest plan left open the question of whether an orderly pullout from Syria would happen.
TRT World's Yusuf Erim has more.
"If anybody but Donald Trump did what I did in Syria, which was an ISIS loaded mess when I became President, they would be a national hero". We will work closely together to make sure we get this right. "Now when I start getting out the Fake News Media, or some failed Generals who were unable to do the job before I arrived, like to complain about me & my tactics, which are working", Trump wrote on Twitter.
He said: "I shouldn't be popular in Europe".