Washington( CNN) Congress should pass permanent protections for young undocumented immigrants and do so in a comprehensive immigration package, Arizona Republican Sen. John McCain said Sunday.

“It is not conscionable to tell young people who just came here as children that they have to go back to a country that they don’t know, ” McCain said on CNN’s “State of the Union.”

The wide-ranging deliberation with anchor Jake Tapper was McCain’s first nationally televised interview since his diagnosis with cancer in July.