How can peaceful public protests push Congress to address concerns that the executive branch is overstepping its authority?

Many progressives argue we’re facing a constitutional crisis, citing actions like:
- Attempts to dismantle or reorganize independent agencies (e.g., efforts to dissolve USAID) without congressional approval.
- Using broad “national emergency” declarations to sidestep budget oversight.
These moves have drawn little resistance from a Republican-led Congress.

To counter this, what would a successful mass protest look like?
1. What’s the minimum turnout needed for a march on Washington to pressure lawmakers? Are there historical benchmarks (e.g., the 1963 March on Washington’s 250,000+ attendees) that signal effectiveness?
2. What lessons from past movements—like the Selma marches’ focus on media narratives or the 1963 march’s coalition-building—could ensure protests lead to policy change? How can organizers maintain momentum beyond a single event?

In your view, what practical steps could turn public outrage into legislative action?