(CNN) – Sen. John McCain slipped into civil war-torn Syria Monday to meet with rebels battling Bashar al Assad's regime.
So how did his daughter Meghan learn about her father's visit?
On Twitter, of course.
Meanwhile, one of McCain's top allies on Capitol Hill, Sen. Lindsey Graham of South Carolina, poked some fun at his friend.
Mouaz Moustafa, with the Washington-based Syrian Emergency Task Force that helped plan McCain's trip, said the Arizona Republican entered Syria through Turkey, and remained in the country for several hours.
While in Syria, McCain met with Gen. Salem Idris, the leader of the Supreme Military Council of the Free Syrian Army. He spent about an hour meeting with Free Syrian Amry commanders from various parts of the country including Aleppo, Homs, and Idlib.
McCain is the leading voice in Congress for a greater U.S. role in ending Syria's civil war, which has been waged for more than two years. He has suggested establishing "safe zones" for Syria's rebels and taking out the regime's air assets, along with providing lethal weapons to Syria's opposition.