After immigration ruling, Democrats’ once-sweeping agenda continues to shrink

President Biden’s governing agenda is at risk of unraveling on Capitol Hill after a mounting series of delays, clashes and setbacks that have sapped momentum from an ambitious and intricate push to deliver on long-standing Democratic policy priorities.

An overhaul of the nation’s voting laws has been blocked by Republicans. An effort to strike a bipartisan deal on police reforms has lost all momentum. A sweeping immigration plan to provide a path to legal residency for millions of undocumented immigrants is now all but dead.

And centrist Democrats on Capitol...