(CNN)It was the middle of the night in Saudi Arabia when word emerged from Washington that President Joe Biden's long-stalled domestic agenda was dead. Again. The culprit was familiar. Sen. Joe Manchin, the moderate West Virginia Democrat, was balking at what effect the massive climate, tax and social safety net plan might have on inflation. In Jeddah, where Biden was convening fraught meetings with Saudi leaders, the news was met with frustration and anger but not surprise. Thirteen days, two Covid infections and a few bitter arguments later, fortunes have shifted. Manchin and Senate Majority Leader Chuck Schumer shocked most...