A look at one of the most divisive battles of US President Donald Trump’s presidency.

Washington, DC – In one of the most divisive political battles of President Donald Trump’s presidency, US Republicans are moving forward with a risky showdown vote on the Supreme Court nomination of Brett Kavanaugh following accusations that the judge sexually assaulted Christine Blasey Ford when they were both teenagers.

Kavanaugh, who has denied the allegations, appeared to be on the fast-track towards being nominated until Ford’s accusations came to light last month.

After a highly-emotional public hearing and an FBI probe, the judge’s confirmation now seems to be all but certain, but how did we get here and what happens next?

How did we get here?

Trump nominated Kavanaugh to replace retiring Justice Anthony Kennedy on July 9.

According to sworn testimony, Ford called her congressional representative three days before the nomination was announced, saying one of the candidates on the president’s “short list” had sexually assaulted her when they were teenagers. She also called the Washington Post’s confidential tip line with the information but did not provide her name.

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After the nomination was announced, Ford met the staff of California Congresswoman Anna Eshoo on two separate occasions, the professor said in her testimony. They discussed sending a letter to Democrat Diane Feinstein about the allegations. On July 30, Ford sent the letter to Feinstein, who is also the most senior Democrat on the Senate Judiciary Committee. Ford requested that what she shared remain confidential.

Meanwhile, Kavanaugh began holding individual meetings with members of the Senate. On September 4, Kavanaugh’s confirmation hearings in front of the Senate Judiciary Committee began.

After reports began to surface about the letter sent to Feinstein, the senator released a statement on September 13, saying that she had “referred the matter to investigative authorities”, adding that “the individual [giving the information] strongly requested confidentiality, declined to come forward or press the matter further, and I have honored that decision”.

Kavanaugh issued a statement on September 14 after contents of the letter began to surface in the media. He said he “categorically and unequivocally” denied the allegations. “I did not do this back in high school or at any time,” he said.

On September 16, Ford revealed herself as the letter’s author in a Washington Post article, describing the alleged assault. According to her, Ford said she chose to come forward because it became clear several journalists learned her identity.

Both Ford and Kavanaugh said that they would be willing to testify before the Senate Judiciary panel about the allegations, and pressure to delay the panel’s scheduled September 20 vote on Kavanaugh’s confirmation began to mount.

Christine Blasey Ford is sworn in before testifying to the Senate Judiciary Committee [Win McNamee/Reuters]

On September 23, the Senate Judiciary Committee’s Republican leadership announced it was delaying its vote on the nomination, scheduling a hearing for the following week to hear from both Kavanaugh and Ford.

New allegations against Kavanaugh also surfaced. Deborah Ramirez, 53, a classmate at Yale University in 1983-84 told The New Yorker magazine that Kavanaugh exposed himself to her without her consent during a drunken party. Kavanaugh denied the allegations.

On September 26, Kavanaugh released calendars from the summer of 1982 that he said disputed Ford’s story. Later that day, Julie Swetnick, who said she knew Kavanaugh during the 1980s, accused the nominee of engaging “in highly inappropriate conduct, including being overly aggressive with girls”, according to a declaration shared by her lawyer Michael Avenatti. Other more serious allegations were also made.

The next day, Ford and Kavanaugh testified separately before the Senate panel.

The emotional testimonies were watched live on television by an estimated 20 million viewers. Social media exploded with commentary as hundreds of thousands of women and men came forward with stories of unreported sexual assault under #WhyIDidntReport and #BelieveSurvivors. Hundreds of women protesting Kavanaugh’s nomination were arrested by US Capitol Police.

Protesters gather for a really against Supreme Court nominee Brett Kavanaugh in Boston [File: Brian Snyder/Reuters]

Republicans questioned why Feinstein didn’t go to the FBI sooner, while Democrats called for a delay in the vote to allow for a full FBI investigation.

Less than 24 hours after the hearing, the Senate committee voted to back Kavanaugh’s nomination, but not before a last-minute demand by Republican Jeff Flake. Flake cast his decisive vote in favour of Kavanaugh only after asking the panel to request the Trump administration pursue an FBI probe into the allegations. Later that evening, Trump ordered the investigation but said it should not take longer than one week.

What was the FBI investigation?

The FBI conducted interviews with several individuals, including those who were said to have been at the gathering where the alleged assault took place. The FBI sent its report to the White House as well as the Senate Judiciary committee. Senators will review it in a secure room, according to Senate rules.

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The probe has been criticised by Ford’s lawyers, who said in a letter to the FBI on Tuesday that their client had not received a response from anyone involved in the FBI’s investigation. The letter added that it was “inconceivable” that the FBI could conclude its investigation without interviewing either Ford or the other witness whose names she provided. The FBI did speak to Ramirez, according to her lawyer.

Democrats called the investigation “very limited”. Feinstein said the probe “looks to be a product of an incomplete investigation”.

Most Republicans, however, seemed to be satisfied with the probe, with many calling it “very thorough”. McConnell said it did not corroborate any of the allegations against Kavanaugh.

What happens next?

In a procedural vote on Friday, the Senate voted 51-49 to end debate on Kavanaugh and advance the nomination for a final vote. Under Senate rules, there will be 30 hours of debate, which is divided equally between both parties. If neither party decides to use their allotted time, the vote could come sooner than 30 hours.

There was speculation that the Republicans may have to hold open the vote into Saturday night or early Sunday morning to allow for Republican Senator Steve Daines of Montana to have time to come back to Washington, DC after his daughter’s wedding. It now appears, however, the Republicans have enough votes without Daines. The vote is expected sometime on Saturday afternoon.

Friday’s procedural vote cames even as Democrats raised doubts about Kavanaugh’s credibility and women across the US expressed anger and shared personal stories following the nationally televised testimony of Ford.

“Women are standing up, finally, and speaking their truth to power. And we’ve been silenced for so long,” said Toni Van Pelt, president of the National Organization for Women, a liberal women’s rights advocacy group with chapters in all 50 states.

“I don’t think that Kavanaugh’s going to be confirmed,” Van Pelt told Al Jazeera prior to Friday’s vote. “Women of this country are not going to allow that to happen. We are not stopping. We are not stopping storming the walls, storming the halls, storming the hearing rooms, tying up the phone lines, going out in our local hometown communities and demonstrating in front of federal buildings and these senators’ offices. No, we are not stopping.”

Do Republicans have the votes?

Most Republicans rallied around Kavanaugh, appearing to conclude that Ford’s and the other women’s accusations were part of a last-minute character assassination by Democrats determined to block Kavanaugh, or any other Trump nominee, from reaching the high court.

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On Wednesday, McConnell accused the “far left” of trying to “bully” Kavanaugh, adding that “there’s no chance in the world they’re going to scare us out of doing our duty”.

Democrats accused the White House and Senate Republicans of limiting the FBI’s investigation, even as classmates and former associates of Kavanaugh came forward to say he was a heavy drinker in college and law school and had misrepresented his past conduct in Senate testimony.

“This consistent dishonesty, disregard – even distaste – for the truth when it gets in the way of what he wants, in this case, a seat on the United States Supreme Court, this in itself should be disqualifying for any Supreme Court nominee,” Senator Tammy Duckworth, an Illinois Democrat, told reporters.

Three Republican senators were holding the key to Kavanaugh’s confirmation in the narrowly divided US Senate where Republicans hold only a 51-49 majority. Two of those senators – Jeff Flake of Arizona and Susan Collins of Maine – have now announced they will be voting in favour of Kavanaugh.

Republican Senator Lisa Murkowski, however, hinted that she would vote against the nomination.

Murkowski’s hints put the nomination in jeopardy, but Democratic Senator Joe Manchin of West Virginia announced he would be voting in favour of Kavanaugh.

Prior to his decision on Friday, Manchin told Al Jazeera: “This has been horrible. It’s another circus.”

“I am looking at the gentleman as an adult from 22 to 53, thirty-one years of professional service. I am looking at him as a father. As a person in a community, how he interacts with his community. I am trying to put the human side to it,” Manchin said.

In a statement on Friday, he said that he has reservations about Kavanaugh, but he is casting his vote on “what is best for West Virginia”. Manchin, who hails from a traditionally Republican state, is running for re-election in November’s midterm elections.

Democratic Senator Heidi Heitkamp, who was undecided until Thursday, announced she will be voting against Kavanaugh.

What’s at stake?

A successful Kavanaugh nomination would affect the balance of power between liberal and conservative jurists on the Supreme Court and likely the future direction of constitutional rights, including the right to an abortion guaranteed in the US under the 1973 landmark decision Roe v Wade.

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If confirmed, Kavanaugh would replace retiring Associate Justice Anthony Kennedy, 82, a conservative jurist nominated by President Ronald Reagan in 1988 who – as a swing vote on the court – had supported women’s rights, gay rights and human rights in a series of key decisions during his tenure.

“This next appointment is going affect immigration, healthcare, and national security matters that are impacting our community,” said Abed Ayoub, national legal and policy director of the American-Arab Anti-Discrimination Committee, an advocacy group based in Washington.

“Someone appointed at his age, they are going to have a chance to shape policy for the next 20 or 30 years,” he told Al Jazeera. “A lot of cases that are currently at the court of appeals level could be used to roll back our rights.”

Either way, a confirmation or a rejection by the Senate coming just five weeks before national congressional elections is likely to send shock waves through the country.