Fox News’ Tucker Carlson recently hosted Pete D’Abrosca, a congressional candidate who has ties to white nationalism and has supported the bigoted, anti-immigrant campaign of a group known as “groypers,” who are trolling conservative public events with anti-Semitic dog whistles and other hateful rhetoric.

Since D’Abrosca announced his congressional bid and anti-immigrant platform over the summer, he’s been lauded by far-right personalities and publications including Ann Coulter and the white nationalist publication VDare and appeared on the conspiracy theory outlet Infowars (which he had also appeared on before). In that most recent appearance, he agreed with the host that Democrats get elected through “illegal voting” and defended the leader of the “groypers,” a far-right media figure, Holocaust denier, and pro-segregation activist named Nick Fuentes who hosts “America First” on YouTube.

Carlson himself has a long history of promoting anti-immigrant white nationalism and espousing talking points that align with the beliefs of D’Abrosca and Fuentes. This commentary has included repeatedly promoting the “great replacement” conspiracy theory, referring to a group of migrants at the southern border as an invasion that is “absolutely destroying America,” and arguing that Mexico is trying to “change the demographics” of the U.S. to sway elections. He’s called the idea that white supremacy is a serious problem in the U.S. a “hoax” and said immigration makes America “poorer, dirtier, and more divided.”

During his December 6 appearance on Tucker Carlson Tonight, D’Abrosca promoted his plan for a 10-year immigration moratorium, a proposal that fits with Carlson’s previous denigration of immigrants: