A year ago, President Barack Obama used the phrase “red line” twice, to make the point that Syria’s use of chemical weapons “would change my calculations significantly” on intervening in the civil war.

But on Wednesday in Sweden — echoing comments made by House Speaker Nancy Pelosi on Tuesday — Obama told reporters, “First of all, I didn’t set a red line. The world set a red line. The world set a red line when governments representing 98 percent of the world’s population said the use of chemical weapons are abhorrent and passed a treaty forbidding their use even when countries are engaged in war.