The current leader of President Trump's voter fraud commission proposed legislation last year that would have allowed all states to take steps aimed at ensuring non-citizens don't vote in elections, according to newly released court documents.

Kansas Secretary of State Kris Kobach, the vice chair of the commission, emailed Trump's transition team the day after the election, according to documents unsealed by a federal judge on Thursday evening.

The documents show Kobach, a strong proponent of voter ID laws, drafted legislation allowing all states to impose proof-of-citizenship requirements by amending the National Voter Registration Act, which lets Americans register to vote when they apply for driver's licenses, commonly known as "Motor Voter." Changes to that federal law would require congressional approval.

The documents were made public by Judge Julie A. Robinson of Kansas after the American Civil Liberties Union sued Kobach over a similar Kansas law that requires people to show proof of citizenship before voting in the state. The lawsuit argues that 35,000 people were unfairly blocked from registering to vote.

Kobach's spokesperson did not return the Washington Examiner's request for comment.

The documents were discussed during Kobach's Nov. 20 meeting with Trump. At the time, Kobach was considered a potential nominee for secretary of the Department of Homeland Security. He was photographed leaving Trump National Golf Club in Bedminster, N.J., with a document titled "Department of Homeland Security Kobach Strategic Plan First 365 Days."

John Kelly, now Trump's chief of staff, became the head of the department. Trump has not yet named his permanent replacement.

The documents are partially redacted, but outline changes to NVRA, including amending the law's "minimum amount of information" standard for voters to say "any information that a state deem necessary."

Critics say requiring proof of citizenship, such as a birth certificate or passport, to register to vote disenfranchises college students, low-income people, and minorities.

Since Kobach was elected Kansas secretary of state, the ACLU has filed at least four lawsuits against him.

The commission itself has faced numerous legal challenges. On Wednesday, a Texas judge issued a temporary restraining order saying the state may not release voter registration information to the commission, as it could violate Texas' privacy laws.

Earlier this year, Kobach requested voter data from every state and the District of Columbia, including the names, addresses, birthdays, the last four digits of Social Security numbers if they are available, voter history, and other personal information.

Numerous states said they wouldn't comply with the commission's request for the identifying information.

In July, a federal judge ruled the commission may continue collecting state voter information, and denied a watchdog group's request to "delete and disgorge any voter roll data already collected or hereafter received."

Trump established the Presidential Advisory Commission on Election Integrity after alleging that "millions" of illegal votes were cast in the 2016 election, though experts say there has been no evidence of widespread voter fraud presented. Republican strategists have also spoken out against the commission.