Protest should be viewed in a similar way. Public protest is a basic right and an important activity in any democracy, but its aim should be the defense of rights and institutions, rather than their disruption. In an important study of the effects of black protest in the l960s, political scientist Omar Wasow found that black-led nonviolent protest fortified the national civil rights agenda in Washington and broadened public support for that agenda. By contrast, violent protest led to a decline in white support and may have tipped the 1968 election from Humphrey to Nixon.