The Constitution doesn’t guarantee any one method of voting, but it does guarantee that states cannot create rules that unreasonably burden the right to vote — especially when those burdens fall hardest on identifiable groups.

Courts look at patterns like:
- Disabled voters who physically cannot vote in person
- People without cars in areas with no public transit
- Workers who can’t leave their jobs without losing pay
- Low‑income voters who face multiple overlapping barriers
- Seniors with mobility or health limitations
- Students who live far from their registration address
When a rule disproportionately harms these groups, courts ask:
Is the burden severe enough that it effectively denies these people the right to vote?
