For Democrats and the Biden agenda, it’s becoming a matter of trust

Many liberals don’t trust moderates. Key moderates no longer trust congressional leaders or the White House. And few in the House trust the Senate.

As Democrats embark this week on their latest effort to save President Biden’s agenda, they are dealing with more than policy differences among their razor-thin majority.

The rival factions sparring over when and how to pass an upgrade to the country’s roads, bridges and Internet connections as well as an expansion of heath-care, education and climate change programs have made clear in recent days that the...