The 25-minute prime-time address on Thursday underscored Trump's effort to make election security a central political issue ahead of November's midterm elections, when his fellow Republicans will be defending their slender congressional majorities.
He used his remarks to again press Republicans in Congress to pass legislation imposing new voter identification and citizenship requirements, despite longstanding findings that voter fraud in US elections is rare. The bill has stalled in the Senate amid fierce Democratic opposition.
Trump said the declassified documents would reveal "shocking vulnerabilities in our election infrastructure". But many appeared to show the opposite, or were not related to US election infrastructure at all.
Trump only briefly mentioned the war at the outset, saying the United States was "winning big," while listing a series of domestic accomplishments, including tax cuts and his immigration crackdown, before turning to election security.
The president said he was declassifying sensitive information that showed China had illicitly acquired 220 million US voter files, including names, addresses and other data used to register to vote.
He asserted that members of the US intelligence community deliberately suppressed information about the extent of China's activities.
His allegations contradict an unclassified 2021 US intelligence community assessment that found no indications any foreign actor attempted to alter or succeeded in altering "any technical aspect" of the 2020 presidential election vote, including voter registrations, ballots, tabulations or results.
Two people familiar with the matter said US voter data obtained by China was not confidential – voter files are routinely purchased by political consultants – and could not be manipulated.
Trump's harsh language about China risked rocking a relationship that has steadied following last year's costly trade war. Trump hopes to meet with Chinese President Xi Jinping in September about improving trade relations.
Before Trump began speaking, a spokesperson for the Chinese embassy, Liu Chang, said in response to a request for comment, "China has never and will never interfere in the presidential elections of the US."
Trump has spent years raising doubts about electoral outcomes, falsely asserting that his 2020 loss to Democrat Joe Biden was rigged. He has also advanced other false claims, including that mail-in balloting is rife with fraud, voting machines are vulnerable and non-citizen voting is widespread.
Numerous courts and vote recounts found no evidence of large-scale fraud in the 2020 election.
Trump said the documents would reveal serious weaknesses in election security. But many either appeared to be inconsistent with that assertion or were unrelated to US election infrastructure:
* One CIA document, prepared last month, concerned Venezuela's election, not America's.
* "We assess that vote tabulation systems would be difficult to manipulate on a wide enough scale to compromise election results," another document said.
* A third document, produced by the CIA, detailed efforts by Chinese spies to target Biden's campaign and noted that Beijing "does not currently intend to covertly interfere to try to sway the outcome of the election," although it said China might later decide to do so.
"Trump's shocking 'bombshells' about China are totally bogus," Democratic Senator Mark Warner, vice chair of the Senate Intelligence Committee, said in a statement during the speech.
"The fact is our intelligence agencies unanimously agreed that China did not even try to change a single vote in the 2020 election."
While Trump cast US elections as highly vulnerable, he did not provide evidence of any actual votes in 2020 that were altered or manipulated.
Two of the three major US television networks and CNN decided not to broadcast the prime-time address on their primary platforms, eschewing a practice typically reserved for major addresses on issues of national import.
Since returning to office in January 2025, Trump has sought to expand federal power over the administration of elections, which legally resides with state governments under the US Constitution.
