Thousands of protesters kicked off marches in Washington and other US cities on Saturday to demand protections for voting rights, aiming to pressure lawmakers to pass legislation to counter a wave of ballot restrictions in Republican-led states. Held on the anniversary of Martin Luther King Jr.'s historic 1963 March on Washington, organizers of the "March On For Washington And Voting Rights" say the state-level moves to curb voting access disproportionately impact people of color.