I came across the phrase ‘the line had turn on us’ in the following paragraph of the article titled “Running in the red: How the U.S. on the road to surplus, detoured to massive debt,” appearing in Washington Post (April 30.)
“Still, Hoagland (CBO analyst, William Hoagland), said, the abandonment of fiscal discipline in the wake of the surpluses clearly didn’t help. ‘Nobody pushed for paying for this stuff,’ he said. Not even after “it became very clear in the middle of 2003 that the line had turned on us. And the surpluses as far as the eye could see were no longer there.’”
I searched for the definition of ‘the line had turn on somebody,’ through Google to find no entry of this phrase. Isn’t “the line turns on somebody’” an idiom? What does ‘the line’ here stand for, and what does this phrase mean at all?