The president also said that the widespread use of digital devices and internet-based communications has created significant vulnerabilities to the threat of foreign interference in US elections.
"I am continuing for one year the national emergency declared in Executive Order 13848 with respect to the threat of foreign interference in or undermining public confidence in United States elections," Biden said on Tuesday.
However, there has been no evidence of a foreign country ever-changing the outcome of a US election, Biden added.