Biden learned Washington as a senator. He needs a different skill set now.

What’s ahead is a legislative numbers game, in which every action can produce a counteraction. If Senate Minority Leader Mitch McConnell (R-Ky.) tries to block the compromise infrastructure bill, for example, moderate Democratic senators such as Joe Manchin III of West Virginia and Kyrsten Sinema of Arizona may be more likely to embrace the broader reconciliation package. If progressives load that bill with too much spending, Manchin, Sinema and other moderate Democrats may bolt.