India, April 19 -- The United States is set to witness its second wave of large-scale protests on Saturday, as organisers aim to transform mounting dissatisfaction with Donald Trump's presidency into a grassroots movement.

An estimated 400 rallies are set to unfold across the United States, led by the activist collective 50501, whose name symbolises its mission: 50 protests in 50 states, united as one movement, reported The Guardian.

This is the fourth big protest organised by the group since Trump became president on 20 January. One earlier event was "No Kings Day" on 17 February, which became more relevant when Trump later called himself a king on social media.

The 5 April "Hands Off" protests, which saw 1,200 demonstrations across t...