With a simple tweet, Trump fired Christopher Krebs, saying his recent statement defending the security of the election was "highly inaccurate."
"The recent statement by Chris Krebs on the security of the 2020 Election was highly inaccurate, in that there were massive improprieties and fraud - including dead people voting, Poll Watchers not allowed into polling locations, "glitches" in the voting machines which changed..."
Trump's anger was directed at director of the Cyber Security and Infrastructure Security Agency, Christopher Krebs, for making what he called a "highly inaccurate" statement about the election, alleging the November 3 presidential election was marred by "massive improprieties and fraud."
"Effective immediately, Chris Krebs has been terminated as Director of the Cybersecurity and Infrastructure Security Agency," Trump added.
Disagreement over alleged voter fraud had been building for weeks — Trump repeatedly tweeting about potential fraud in the run-up to this month's election, directing his points on the expanded use of mail-in ballots due to the coronavirus pandemic.
He continued on November 5, 2 days after the election, saying on Twitter that he would challenge the results in some of the states projected to go for Joe Biden, claiming "Voter Fraud and State Election Fraud."
But untrue allegations from his campaign and his supporters, evidence of massive voter fraud or other problems that could change results of the election in Trump's favor has not materialized.
Late last Thursday, a coalition of federal and state officials, including CISA, further rejected the allegations as baseless.
"The November 3rd election was the most secure in American history," the Election Infrastructure Government Coordinating Council (GCC) Executive Committee and the Election Infrastructure Sector Coordinating Council said. "There is no evidence that any voting system deleted or lost votes, changed votes or was in any way compromised."
Krebs himself had also taken an active role in debunking rumors and unfounded allegations in the days and weeks following the election, taking to Twitter to dismiss some conspiracy theories as "nonsense" while also directing voters to CISA's Rumor Control website for accurate information.