Kansas Secretary of State Kris Kobach has been asked to join Donald Trump’s presidential transition team.

Kobach is a controversial figure because he was the architect of what many consider to be the most racist law in modern American history: SB 1070, passed in Arizona in 2010. The law allowed police officers to stop anyone that they suspected of not being a citizen in order to ask that person to prove proof of citizenship.

The law, nicknamed “Papers Please,” was championed by both Kobach and the right-wing ALEC (American Legislative Exchange Council), and two dozen other bills like it spread throughout conservative states.

–Donald Trump and Woodrow Wilson: How to get your bigot on as president–

“Arizona’s S.B. 1070 compels police to ask for papers from anyone they have a reasonable suspicion of being without status. Under this law any person of color, or anyone with a foreign accent, can be required to prove their status and be jailed—regardless of whether they are a citizen or an immigrant—until they can do so. The Supreme Court indicated that prolonged detention would be impermissible, but people’s rights will likely be violated before that limitation can be enforced,” according to AmericanProgress.org.

What’s more, Kobach was a featured speaker at a workshop for the white nationalist The Social Contract Press (TSCP). And before he was secretary of state, he was a lawyer for Federation for American Immigration Reform (FAIR), which has been designated as a hate group by the Southern Poverty Law Center.

And this man is going to be helping our next president transition into office.