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Top GOP senator implicates impeachment witness in possible whistleblower conspiracy as Dems wrap up third day of Trump trial
As the third day of President Trump’s Senate impeachment trial wrapped up Thursday, most of the drama was elsewhere -- with one witness for the Democrats accusing a Republican senator of "defamation" and "slander" after she questioned his patriotism and implicated him in a scheme to take down Trump from inside the White House.

The spat began Thursday evening on Twitter, when U.S. Sen. Marsha Blackburn, R-Tenn., quoted the commanding officer of Lt. Col. Alexander Vindman as saying that Vindman was a "political activist in uniform." Vindman, a National Security Council official, testified during House Democrats' impeachment inquiry last year that Trump's Ukraine dealings left him in a state of "shock." Democrats quoted from Vindman's remarks during the Senate trial on Thursday.

Vindman has denied knowing the identity of the whistleblower who flagged Trump's fateful July 25 phone call with Ukraine's president. Republicans have questioned that claim because under cross-examination, Vindman apparently admitted to leaking the contents of Trump's call to the whistleblower.

As U.S. Rep. Adam Schiff, D-Calif., who presided over House Democrats' impeachment inquiry and is the leading impeachment manager at the Senate trial, spoke Thursday and made references Vindman, Blackburn fired off a series of tweets.

"It makes sense that Alexander Vindman leaked the July 25th phone call to his friend (aka the 'whistleblower')," Blackburn tweeted. "They both have lots in common: —Held the same NSC job —Liberals who worked under Obama —Wanted to take out Trump."

Vindman's legal team responded within hours, accusing Blackburn of slandering him with "defamatory tweets." Speaking to "The Ingraham Angle" late Thursday, Blackburn doubled down. Click for more on our top story.

Other developments in Trump's Senate impeachment trial:
- Democrats charge that Trump's conduct was worse than Nixon's
- Reporter's Notebook: Trump's Senate impeachment trial could boil down to one word – 'pettifogging'
- GOP leadership tries to avoid defections on possible witness vote
- Sen. Joni Ernst calls out Democrats for ‘hypocrisy’ on U.S. aid to Ukraine

TUNE IN: Don't miss an exclusive interview with President Trump tonight on "The Ingraham Angle" at 10 ET!

China's coronavirus outbreak kills first person outside 'epicenter' province; lockdowns affect 25 million people
China’s deadly coronavirus has claimed its first life outside the city of Wuhan, the epicenter where the infectious disease began, officials confirmed Thursday as they expanded their unprecedented lockdown affecting nearly 25 million people.

The 80-year-old victim died in the province of Hebei, near Beijing, after visiting relatives in Wuhan for more than two months, according to local reports. Nearly 80 people who had been in contact with the victim have been quarantined. The death brings the total number of coronavirus victims to 25, more than half of which occurred in Wuhan.

Meanwhile, at least 830 cases of people infected by the disease have been reported worldwide. Chinese officials on Thursday locked down at least six cities: Wuhan, Ezhou, Huanggang, Chibi, Qianjiang, Zhijiang, Jingmen and Xiantao -- all in central China's Hubei province, where the illness has been concentrated, during the busy Lunar New Year travel period.

The open-ended lockdowns are unmatched in size, embracing more people than New York City, Los Angeles and Chicago combined. Click here for more.

Carter Page FISA warrant lacked probable cause, DOJ admits in declassified assessment
At least two of the FBI’s surveillance applications to secretly monitor former Trump campaign adviser Carter Page lacked probable cause, according to a newly declassified summary of a Justice Department assessment released Thursday by the Foreign Intelligence Surveillance Court (FISC).

The DOJ's admission essentially means that the Foreign Intelligence Surveillance Act (FISA) warrant authorizations to surveil Page, when stripped of the FBI's misinformation, did not meet the necessary legal threshold and should never have been issued. Click here for more.

Elizabeth Warren confronted by Iowa dad over student loan plan
Pence's office denies Prince Charles 'snub' after video posted online.
Remembering PBS NewsHour co-founder Jim Lehrer.
Antonio Brown surrenders to police in Florida: report

Coronavirus is a threat to oil markets.
Bayer faces fourth U.S. Roundup cancer trial in Monsanto home court.
How hundreds of Americans raised their credit scores by 120 points in a year.


Shannon Bream shares "darkest days" to "hopefully bring someone else back from the brink."
#TheFlashback: CLICK HERE to find out what happened on "This Day in History."

Laura Ingraham sarcastically claims that House Intelligence Committee Chairman Adam Schiff had developed the "power to read minds" in the course of the Trump impeachment investigation.

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Fox News First is compiled by Fox News' Bryan Robinson. Thank you for making us your first choice in the morning! Enjoy your day and weekend! We'll see you in your inbox first thing Monday morning.