An armed man arrested Saturday during Nashville’s “No Kings” protest has a long history of fascination with Nazis and mass murderers, NewsChannel 5 Investigates has learned.

Demonstrators are expected to gather at Bicentennial Capitol Mall State Park Saturday from 10 a.m. to 2 p.m. as part of the national No Kings protest movement.

Protesters are gathered Saturday morning in cities across Middle Tennessee as part of the nationwide “No Kings Day” demonstrations.

Large crowds gathered Saturday across the nation in No Kings protests against administration's deportation and detainment of immigrants.

Viewers send WSMV4 footage of a man who was detained at the Nashville ‘No Kings’ rally.RELATED COVERAGE: Thousands gather for ‘No Kings’ Rally in NashvilleA volunteer safety officer with the protest,

From Southern California to Washington, D.C., and all points between, large crowds began to gather for the planned "No Kings" rally against the Trump administration's ongoing immigration enforcement efforts on Saturday,

There are at least 24 protests planned across the state of Tennessee, including several in Middle Tennessee from Clarksville to Pulaski to Murfreesboro and more. Organizers say they expect the largest rally to happen in Nashville.