The Vermont lawmaker said Donna Brazile showed "courage" by disclosing what she learned about Hillary Clinton's campaign and the DNC.
"As has now come out, that just wasn’t the case," she said.
The political analyst's book flew off Amazon's virtual shelves and was sold out.
The former interim chairwoman of the Democratic National Committee wrote about the unsolved murder of Seth Rich in her new book.
A year has passed since the 2016 election, but you wouldn't know it from Donald Trump's Twitter feed.
“America has now jumped off a constitutional cliff.”
Accusations between Democrats and Republicans come a week after special counsel Robert Mueller moved forward with charges against Trump campaign members.
The FBI had previously said the bureau began drafting a statement about Clinton months before interviewing her.
Tweets from Russian accounts pushed praise for Trump over criticism by close to a 10-to-1 margin
The former DNC chair claimed Hillary Clinton's campaign was "shameful" for hiding her illness.
The Democratic National Committee and Hillary Clinton came under fire this week for a financing deal struck more than a year before the 2016 general election.
Republican lawmaker says Mueller "must step down immediately” because of ties to the Obama administration.
Among those who felt President Donald Trump likely committed a crime, 19 percent believed there was solid evidence
Hillary Clinton dropped from No. 2 in 2016 to No. 65 on this year's list
The 2012 attacks resulted in the deaths of four U.S. personnel and became a debate flashpoint during the 2016 election.
Two of President Trump's key campaign aides lied about secret emails and obscured evidence from investigators all while crafting a campaign that accused Hillary Clinton of doing the same.
"What we should be focusing on are the continued lies of the Clinton administration!"