White House senior adviser Stephen Miller on Monday voiced support for an immigration system that favors foreign nationals who can become "more" assimilated into American culture.

ADVERTISEMENT "We can have an immigration system that 10, 20, 30, 50 years from now produces more assimilation, higher wages, more economic opportunity and better prospects for immigrants and U.S.-born alike," Miller said on Fox News's "Tucker Carlson Tonight."

Miller pushed the White House message on immigration reform, calling for a border wall and an end to "chain" migration, the process by which an immigrant can petition to bring family members to the United States, as well as the adjustment of the country's visa lottery system.

He said Democrats, who are fighting for a new plan on the Deferred Action for Childhood Arrivals program, need to face reality and " ultimately have to make a choice" as the Jan. 19 spending bill battle approaches.