Gov. Gavin Newsom on Saturday signed legislation to increase security for the state's voting systems and protect Californians' ability to cast ballots in an effort to guard against potential interference in the Nov. 3 election, including by the Trump administration.

Newsom pointed to the Trump administration's recent effort to restrict mail-in voting through the U.S. Postal Service, which was struck down by the U.S. Supreme Court, and the presence of federal monitors at California polls last year as evidence that Trump "will continue his efforts to interfere with the November election."

"Donald Trump won't stop until he can exert dictatorial control over y...