Voter Fraud By Signing a Registration Application

Signing your name on a registration application is considered "proof" of US citizenship under CA law.

As if a foreign national in our Nation illegally would not falsely sign the form because they may be fined if it were ebver investigated (and proof of citizenship is almost never investigated)

From the CA voter registration drive guide:

"United States Citizenship

The most basic requirement for registering to vote is United States citizenship. The 14th Amendment to the United States Constitution states, “All persons born or naturalized in the United States and subject to the jurisdiction thereof, are citizens of the United States and of the state wherein they reside.” A person is not a citizen simply because they live in California or are married to a U.S. citizen.

While federal law requires the voter to check a box on the affidavit of registration to indicate that they are a U.S. citizen, Elections Code section 2111 says that a person who signs an affidavit of registration under penalty of perjury is assumed, in the absence of contrary information, to be a citizen. Elections Code section 2112 additionally states that an affidavit of registration is proof of citizenship for voting purposes only; it cannot be used to prove citizenship for any other purpose."

https://www.sos.ca.gov/elections/publications-and-resources/guide-vr-drives/

CA Elec Code § 2111 (2017)

A person may prove he or she is a citizen by his or her certification under penalty of perjury on the affidavit of registration.

CA Elec Code § 2112 (2017)

Notwithstanding any other provision of law to the contrary, the fact that a person certifies to his or her United States citizenship by signing his or her affidavit of registration shall be deemed evidence of citizenship for voting purposes only.

https://law.onecle.com/california/elections/2111.html