On Saturday, when he announced he was going to seek Congressional approval, Obama said he wanted "limited" targeted strikes to "degrade" Syria's ability to launch chemical weapons. The draft resolution he sent to Congress, however, allowed for a more open-ended engagement and didn't specifically rule out sending troops into Syria.
On Monday, Sens. John McCain and Lindsey Graham said their support of a military strike was conditioned on Obama broadening the mission to embrace "regime change" as a goal. They also urged Obama to arm the Syrian rebels with heavy weapons, a move opposed by 70% of Americans.
In his testimony on Tuesday, hours after Boehner and Cantor endorsed military action, John Kerry opened the door
to the possibility of ground troops invading Syria. In subsequent questioning, he tried to minimize that possibility.
On Wednesday, the House Foreign Relations Committee will meet to discuss possible military action in Syria.