While he's been vocally critical of Trump since the last contest in the Democratic presidential primary, Sanders has still not formally dropped his White House bid, although he's said that "in all likelihood" he will vote for Clinton.
In an interview for NPR's Weekend Edition that will air Sunday, Vice President Joe Biden said that he believes Senator Bernie Sanders will endorse Hillary Clinton for president.
Trump has also retracted two of the many outrageous remarks he made during the primary campaign.
Biden will join Clinton for the first time on the campaign trail next Friday in his hometown of Scranton, Pa.at a state Democratic party event. By contrast, only 29% of white Obama-approving voters are enthusiastic about Hillary Clinton's campaign for president.
Clinton's campaign, meanwhile, has been dogged by allegations that she mishandled classified emails and failed to protect US diplomats in Libya while secretary of state in Obama's first administration.
Labor leaders acknowledge that Trump's tough talk on trade will likely draw some support from their membership, but they question his commitment to the issues and are planning extensive member outreach.
Other models within the site's projections, including models that take historical data into account, also project Donald Trump would hold the state for the Republican Party.
Polling wonder-kid Nate Silver reckons Donald Trump has just a 20-25 per cent chance of winning the United States presidential election.
The meteor is most popular with independent voters, coming in at a near three-way tie at 27 percent to Clinton's 35 percent and Trump's 31 percent. Hillary Clinton by comparison raised $26 million during the month.
The resulting money flow could help the presidential candidates build robust on-the-ground voter contact and turnout operations, as well as pay for costly advertising.
A new poll from Rasmussen shows a nine-point flip in the gap between Trump and Hillary Clinton, transforming a 44/39 deficit to a 43/39 lead for the Republican.
He brought in just over $3 million from donors in May, compared to Clinton's more than $26 million. The same can not be said at this point for Hillary Clinton (or Trump).
Democrats and other political experts have assumed that an endorsement by Bernie Sanders was required to bring Sanders followers into the fold for the election battle against Trump.
The campaign cited news coverage of Trump's business record in Atlantic City, including bankruptcies, lost jobs and contractors who were not paid what they said they were owed.