Former FBI director James B. Comey testified about his interactions with President Trump before the Senate Intelligence Committee June 8. Here are key moments. (Sarah Parnass/The Washington Post)

Former FBI director James B. Comey's planned appearance before the Senate Intelligence Committee in one of the most anticipated congressional hearings in recent memory. The event is so big that the three major broadcast networks have taken the unusual step of scrapping their regular daytime programming to air live coverage.

Comey will surely be asked about private conversations he had with President Trump. Of particular interest is whether Comey felt that the president was attempting to obstruct justice by trying to influence the FBI's investigation of Russian election meddling.

Need a primer on how we got to this dramatic moment? Here's some of the most recent Washington Post reporting on Comey, Trump and the Russia investigation:

“I expect loyalty,” Trump told Comey according to written testimony

Coats told associates Trump asked him if he could interven with Comey on FBI probe

James Comey's big Jekyll-and-Hyde question

A viewer's guide to the Comey hearing

All eyes will be on James Comey this Thursday — again

Trump, furious and frustrated, gears up to ‘punch back’ at Comey testimony 

Want more? Here's a recap of the past year in Comey-related news:

July 5, 2016: Comey calls a news conference to announce that the FBI, having completed an investigation of Hillary Clinton's private email use during her tenure as secretary of state, will recommend no criminal charges. He characterizes the conduct of Clinton and her staff as “extremely careless” but says “our judgment is that no reasonable prosecutor would bring such a case.”

The event is unusual in two ways: The FBI director typically does not make public announcements or make recommendations about charges. But Attorney General Loretta E. Lynch, who would make the call under normal circumstances, had deferred to Comey after a meeting with Bill Clinton damaged her ability to appear impartial. And Comey says he decided to share “more detail about our process than I ordinarily would because I think the American people deserve those details in a case of intense public interest.”

[LIVE UPDATING: How cable news networks are reacting to Comey’s hearing]

The news conference elicits mixed reactions on both sides of the aisle. Republicans love Comey's public criticism of Clinton but hate his recommendation not to charge the then-Democratic presidential front-runner. Democrats feel the opposite on both points.

FBI Director James Comey said on July 5, 2016, that Hillary Clinton did send and receive classified emails during her time as secretary of state, but shouldn't be charged with criminal misconduct. (Reuters)

Oct. 28, 2016: Comey sends a letter to congressional leaders saying the FBI has discovered additional emails that appear relevant to the Clinton investigation, which he previously said had been completed. Trump praises the move, saying “it took a lot of guts” and that Comey “brought back his reputation” by sending the letter less than two weeks before Election Day. Clinton calls the letter and its timing “unprecedented” and “deeply troubling.”

Multiple news outlets report that the FBI discovered the new emails on a laptop shared by Clinton aide Huma Abedin and her husband, former congressman Anthony Weiner (D-N.Y.), who is under investigation for allegedly sending sexually explicit messages to a minor.

Oct. 31, 2016: Mother Jones magazine reports that an unnamed “former senior intelligence officer for a Western country” has “provided the bureau with memos, based on his recent interactions with Russian sources, contending the Russian government has for years tried to co-opt and assist Trump — and that the FBI requested more information from him.”

Nov. 6, 2016: Comey says the FBI has completed its review of the additional emails and that its recommendation not to bring criminal charges has not changed.

Nov. 8, 2016: Trump is elected president.

Jan. 10, 2017: CNN reports that U.S. intelligence officials during the previous week briefed President Barack Obama and President-elect Donald Trump on unconfirmed claims that Russia has attempted to compromise Trump. BuzzFeed publishes a dossier detailing the claims, which many news outlets had possessed for weeks but withheld because the information could not be verified.

Feb. 14, 2017: The New York Times and CNN report that Trump associates, including Paul Manafort, Roger Stone and Carter Page, were in regular contact with Russian intelligence officials during the campaign.

March 20, 2017: Comey confirms in testimony before the House Intelligence Committee that the FBI is investigating possible collusion between the Trump campaign and the Kremlin as part of its probe of Russian efforts to meddle in the presidential election.

FBI Director James B. Comey confirms the Bureau is investigating Russian interference in the 2016 presidential election and possible collusion between Kremlin and Trump associates during a House Intelligence Committee hearing March 20. (Reuters)

May 3, 2017: Comey says in testimony before the Senate Judiciary Committee that it makes him “mildly nauseous” to think that his Oct. 28 letter about additional emails related to Clinton might have impacted the election but stands by his decision to send the letter. He testifies that Abedin “forwarded hundreds and thousands of emails, some of which contain classified information,” to Weiner.

May 8, 2017: ProPublica reports that Comey misstated the number of emails Abedin forwarded to Weiner. “According to two sources familiar with the matter — including one in law enforcement — Abedin forwarded only a handful of Clinton emails to her husband for printing — not the 'hundreds and thousands' cited by Comey,” ProPublica reports.

May 9, 2017: The FBI sends a letter to Congress correcting Comey's testimony. Later in the day, Trump fires Comey as FBI director.

May 11, 2017: The New York Times reports that Trump had sought a loyalty pledge from Comey over dinner in January and that Comey refused.

May 16, 2017: The Times reports that Trump asked Comey in February to shut down an investigation of former national security adviser Michael Flynn, according to a memo written by Comey.

June 6, 2017: The Washington Post reports that Director of National Intelligence Daniel Coats told associates in March that Trump asked him if he could intervene with Comey to persuade the FBI to back off its focus on Flynn in the Russia probe. Also, the Times reports that Comey asked Attorney General Jeff Sessions in February not to leave him alone with Trump because the president's private requests had been inappropriate.

Read more:

Comey’s testimony: Live analysis and video updates

Analysis: Here are the things Trump’s lawyers desperately hope he doesn’t tweet today