NEW YORK (CBSNewYork/CBS News) -- CBS News learned exclusive new details Thursday night on the FBI's probe of Democratic presidential nominee Hillary Clinton's email.
Meanwhile, renewed allegations of racism have surfaced against Republican presidential nominee Donald Trump.
As CBS2's Brian Conybeare reported, CBS News has learned that some messages discovered on Anthony Weiner's laptop are new. They are related to Clinton's tenure as secretary of state and they are not duplicates of emails found on Clinton's private server, CBS News' Andres Triay reported.
But it remained to be seen Thursday night whether the emails were significant to the FBI's investigation into Clinton. It was also not known how many relevant emails there were.
In a letter to Congress last Friday, FBI Director James Comey indicated that the agency was taking steps to review newly discovered emails relating to Clinton's private email server. Those emails came from the laptop of Weiner, a former New York congressman. Abedin reportedly said she had no knowledge of the existence of any of her emails on Weiner's laptop. On Monday, CBS News reported that the FBI had obtained a warrant for the emails.
In a separate matter, CBS News confirmed that there were disagreements between FBI agents looking into the Clinton Foundation and their superiors in Washington and at the Department of Justice. The Wall Street Journal reported Wednesday that the FBI was facing an "internal feud" over how to handle the Clinton Foundation case in the middle of election season. Officials say tension like this is common in many cases.
It is still unclear whether the FBI inquiry into the Clinton Foundation was a full-blown investigation. The current status of that inquiry is also unclear. However, no known charges have been filed related to the foundation.
In North Carolina Thursday night, Trump accused Clinton of perjury over the latest email revelations.
"CBS News just announced and confirmed that the 650,000 emails discovered by FBI include brand new emails not previously seen," Trump said.
Trump also unveiled a new campaign spot targeting Clinton's use of her private email server, as well as the laptop shared by former congressman and mayoral candidate Weiner and his estranged wife, top Clinton aide Huma Abedin.
"Hillary Clinton is under investigation again after her emails were found on pervert Anthony Weiner's laptop," Trump said.
Meanwhile, Trump has enlisted former primary rival U.S. Sen. Ted Cruz (R-Texas), who is now back on board.
"I'm about to get ready to get on a gigantic airplane that has Donald Trump's name painted on the side of it," Cruz said. "On Monday of this week, I voted for Donald Trump."
For her part, Clinton got a new musical push from pop star Pharrell Williams in North Carolina Thursday night. And her onetime primary rival Bernie Sanders joined her onstage accusing Trump over racism.
"We have struggled for so many years to overcome discrimination and he is running his campaign, the cornerstone of which is bigotry," Sanders said.
Earlier, Clinton reminded minority voters that a Ku Klux Klan newspaper endorsed Trump.
"They wrote their endorsement under the slogan of his campaign, 'Make America Great Again,'" Clinton said.
Trump rejected such endorsements in the past.
Trump's wife, Melania Trump, made her first speech since the Republican National Convention in July, vowing to fight cyberbullying if she becomes first lady.
"We have to find a better way to talk to each other; to disagree with each other; to respect each other," Melania Trump said.
As of Thursday night, Clinton had a slim three-point lead in the latest CBS News national poll of likely voters.
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