The Clinton campaign are going on the offensive following that CNBC story, external.

Brian Fallon, the Clinton spokesman, called the report a "bombshell", and the campaign immediately retweeted the report.

The CNBC report has not been confirmed and the FBI has yet to make a comment.

Image source, Getty Images

CNBC reports that FBI Director James Comey opposed, external the decision by the US intelligence community to name Russia as being behind the hacks of the Democratic National Committee and the campaign manager for the Clinton campaign, John Podesta.

He privately opposed making an official statement, saying he was concerned about the timing, and it being too close to election day.

Comey opposed the 7 October statement which was released by the Dept of Homeland Security, which stated that "the Russian Government directed the recent compromises of emails from US persons and institutions", CNBC reports.

The FBI director has been crticised by members of both parties over his vague statement 11 days before the election saying that the investigation into Hillary Clintons emails had resumed.

Anthony Zurcher
BBC North America reporter

Donald Trump asks for miracles; I give him the F… B… I.

With all apologies to the film Die Hard, just a week ago it looked like Mr Trump was poised for a climactic plummet to his political demise. Now, however, the Republican nominee has a new talking point to relentlessly hammer, and Hillary Clinton’s glide path to the presidency has been disrupted.

That all of this comes as a result of a letter to Congress by FBI Director James Comey so cryptic it could’ve been written by a Delphic oracle - and may very well amount to nothing - is beside the point. The question right now is whether any of this will make a difference when figuring out who is going to win Florida. Or Ohio. Or (shock of shocks) formerly solid red Arizona.

The answer is: It probably won’t.

So my back-of-the-envelope prediction right now is that the 2016 electoral map is going to look a lot like past ones. With a week left, my best guess is that on election day Mr Trump will show strength in the Midwestern states, winning Ohio and Iowa but not closing enough to put key battlegrounds like Wisconsin and Pennsylvania in his column.

I suspect Mrs Clinton will carry Virginia and Colorado comfortably and eke out narrow wins in North Carolina and, thanks to Hispanic turnout, Arizona.

Florida? I’ll put it in Mr Trump’s column by the narrowest of margins, but for once - to the relief of Americans whose memories of the 2000 election still give them shakes - it won’t matter. Mrs Clinton’s strength elsewhere will put her in the White House.

You can make a prediction of your own using our Predict the president game. 

The Clinton campaign likes to compare their candidate's 30-year public service career to Donald Trump's time spent in the private sector.

Today, which is Halloween, the campaign has put out a guide, external on how to dress as the different periods in her life. 

First is "Hipster Hillary":

Image source, Clinton campaign

Here's what you will need if you want to go as Secretary of State Hillary Clinton: (Although the campaign calls this phase the "'Texts from Hillary' Hillary" in a reference to the popular meme, external.)

Image source, Clinton campaign

Or maybe you'd prefer to go as her running mate Time Kaine aka "Troubadour Tim Kaine":

Image source, Clinton campaign

Tech entrepreneur Peter Thiel reaffirmed his support for Trump while speaking at the National Press Club in Washington. 

He acknowledged some of Trump's comments “were clearly offensive and inappropriate", but said he and other Trump supporters were voting for him “because we judge the leadership of our country to have failed".

The PayPal co-founder, who delivered an endorsement for the candidate at the Republican National Convention, came under fire for donating $1.25m (£1m) in support of Trump after several women accused the nominee of sexual assault. 

Earlier on Monday, the Republican nominee talked about the Clinton emails and he didn't mince his words.

Jon Sopel
BBC North America Editor

It is all about the math/s (choose as appropriate depending on whether you're American or British). Everything else is noise. If that sounds a bit bald, let me expand. 

Donald Trump to get to 270 electoral college votes and win the presidency needs to win Pennsylvania, North Carolina, Florida and Ohio - as well as all the usual "safe" Republican states. 

Latest polls suggest that he might well pull off victory in Florida and Ohio, but the other two still seem out of reach. If that holds true, then Hillary is the next president. 

It is entirely possible that the Comey bombshell will change all that, but we will have to wait a little longer for polling evidence to make that judgement. 

So if it doesn't alter the trajectory of the race, are we overblowing the importance of the FBI intervention? Emphatically no. It has shifted the narrative completely. 

It may well be impossible to say the FBI director's abstruse letter decided the presidency, but there could be a handful of tight Senate and House races that have been affected. And that is still an enormous deal. 

You can make a prediction of your own using our Predict the president game. 

Hillary Clinton has addressed the FBI story as she speaks to supporters in Kent, Ohio.

“It was a mistake and I regret it,” she said, referring to her private email arrangement while secretary of state.

“They (the FBI) should look at them (Huma’s emails) and I’m sure they’ll reach the same conclusion they did when they looked at my emails for the past year. There is no case here.”

With just eight days to go, the question of which states to campaign in is crucial for both candidates. 

Mr Trump is holding two rallies today in Michigan, which is a battleground state he's currently behind in by about 6%, according to the state polling average by RealClearPolitics, external. 

Michigan sits in the so-called Rust Belt, which was once the country's manufacturing heartland but has suffered from serious unemployment since heavy industry began to decline in the 1980s. 

The Republican nominee has tried to target the Rust Belt states by rallying against globalistion and saying that he would bring jobs back to America that have been sent overseas in recent years. 

Trump supporters made the most of Halloween during campaign stops in Michigan, where some donned costumes showing their support for the Republican nominee while others paid homage to past American leaders. 

Image source, AP

Image source, AP

Image source, Reuters

Cranston, who shot to fame as a drug-dealing high school teacher in Breaking Bad, has been talking to the BBC about the US election.

Donald Trump fans have raised the bar in finding unusual and fashionable ways to show their support for him during this election.

This example from his rally in Michigan today may well be the best we've seen. It's an image of Mr Trump's head photoshopped on to the topless torso of Vladimir Putin, who appears to be piloting a bald eagle alongside some fighter jets. What's not to love?

Image source, AP

Trump said "we hit the motherlode” with the new emails discovered by the FBI on Anthony Weiner’s laptop.

He added the US would face "the real possibility of a constitutional crisis" if Hillary Clinton is elected president. 

Addressing supporters at a rally in Michigan, Trump thanked Huma Abedin and her estranged husband Anthony Weiner for their part in the crisis engulfing Hillary Clinton's campaign.

The "Clinton crime spree" will end on 8 November, he said. 

"Hillary is not the victim. The American people are the victim of this corrupt system."

Image source, AFP

More than 21 million votes have already been cast across states where early voting is allowed. So what do we know about those votes?

The New York Times, which is keeping track of the numbers here, external, says the stand-out state so far is Texas, where the number of early voters in 15 of the largest counties is about 40% higher than at the same point in 2012. 

The data available also shows the number of Hispanics voting early is up in several states, in particular in Arizona, Nevada and Utah, according to the NYT. 

Although we won't find out who early voters have voted for until after election day, the data does show how many registered Democrats and Republicans have cast their ballots. And in Florida, the number of votes between the two parties is unsurprisingly close. 

Of course, there is only so much we can learn from the data so be careful not to draw too many assumptions. 

Josh Earnest, the White House press secretary, has told reporters President Barack Obama believes FBI director James Comey is a "man of integrity and good character".

The president does not believe he is trying to affect the election but he finds himself in a "tough spot".

The White House will neither defend nor criticise Mr Comey's decision, the spokesman added.

This puts the president at odds with Hillary Clinton, who called the Comey letter and its timing "deeply troubling".

A police union president says that he used "poor judgement" when he was pictured alongside a person wearing an inmate Hillary Halloween costume. 

"These were Halloween costumes. It was meant totally as a joke," Harold MacGilvray of the Medford Police Patrolmen’s Association told the Boston Globe, external.

Chants of "lock her up" have become a common refrain at Trump rallies, and Trump himself said that if he was president, Clinton would be in jail for mishandling classified information.

BBC producer Ashley Semler has seen an orange-jumpsuited Clinton today in Michigan.