State Rep. Dave Williams, R-Colorado Springs, is scheduled to be at the White House Thursday to talk immigration with President Trump’s Domestic Policy Council.

Williams has been a proponent of ending so-called sanctuary cities in Colorado, sponsoring unsuccessful legislation last year to allow public officials to be arrested if local policies on undocumented immigrants permit a crime of violence.

Williams was allowed to bring guests, so he chose Republican Reps. Steve Humphrey of Severance, Tim Leonard of Evergreen and Kevin Van Winkle of Highlands Ranch, according the state House Republican Press Office.

The members are paying their own way, because Amendment 41 passed by Colorado voters in 2006 blocks such gifts.

Last August Williams wrote to Trump urging him to intercede in the city of Denver’s plan not to cooperate with federal immigration efforts.

“It’s an honor to be leading a grassroots delegation from Colorado to discuss how we can stop sanctuary cities, restore law and order and prevent gangs like MS-13 from bringing violence and drugs across our borders,” Williams said in a statement.

The El Salvadoran-based street gang often mentioned by Trump as a reason for tougher immigration enforcement has members in Colorado. Last November Colorado yielded two arrests as part of a nationwide sweep of MS-13 members.

“This invitation shows that the Trump administration wants to get input from specific states dealing with irresponsible immigration policies, and is serious about partnering with local leaders to tackle the growing concerns about illegal immigration in our country,” Williams said.

The four House Republicans follow their leader, House Minority Leader Patrick Neville of Castle Rock, who met with President Trump at the White House two weeks ago to talk about allowing school staff to carry guns on campus. Neville is a survivor of the mass shooting at Columbine High School in 1999. The night before his meeting at the White House, a state bill to allow teachers to carry guns was voted down in a House committee.