US presidential hopeful Hillary Clinton's campaign has confirmed that her former Democratic rival Bernie Sanders will join her at a New Hampshire event, where he plans to endorse her.
Mrs Clinton's team is holding the event at a high school in Portsmouth, New Hampshire, tomorrow.
Mr Sanders defeated Mrs Clinton by a wide margin in New Hampshire, in the nation's first primary.
His endorsement will come a month after the final primary. Mr Sanders has pushed for policy agreements on higher education, health care and a US$15 federal minimum wage.
Some of those policies were included in a draft of the party's platform in Orlando, Florida, over the weekend.
Mr Sanders has not yet confirmed he will endorse Mrs Clinton in a battle against presumptive Republican nominee Donald Trump in the autumn, but told reporters on Saturday that the two Democratic campaigns are coming together, and urged them to "stay tuned".
Meanwhile, Mr Trump is set to deliver a speech on veterans' issues.
The address is his latest bid to set out his policy agenda and convince still-reticent Republicans that he has the discipline and control to mount a credible general election bid against Mrs Clinton.
Mr Trump's 10-point plan, aimed at improving veterans' care, will include allowing veterans to seek government-funded private medical care.
He is expected to say: "We made a promise to these heroes. You defend America, and America will defend you."
Mr Trump is also expected to hammer the Obama administration for the 2014 Veterans' Affairs (VA) scandal over long waiting times for veterans seeking medical care and falsified records by VA employees to cover up the delays.
"The VA scandals that have occurred on this administration's watch are widespread and inexcusable," he is expected to say.
"Fixing this corruption will be one of my highest priorities - and it will happen. It will be fixed."
The billionaire will speak in Virginia, not far from the USS Wisconsin in Norfolk, where he first unveiled his plan to reform the Department of Veterans' Affairs last October.
Mr Trump is expected to continue making the case for veterans to use any doctor they choose, including those outside VA centres.
His 10 steps will include overhauling current visa programs "to ensure American Veterans are in the front, not back, of the line".
He will also pledge to discipline federal workers who abuse the system and appoint a commission to investigate the VA and present its findings to US Congress.
It is unclear how that commission would be different from the one that unveiled its findings last week.
Mr Trump has been working to repair his relationship with veterans since he suggested early in his campaign that senator John McCain was not a war hero because he was captured during the Vietnam war.
Mr Trump also raised eyebrows earlier this year when he failed to immediately disclose which veterans' charities he'd given money to following a fundraiser he'd held in place of a Republican debate.
In the plan announced last autumn, Mr Trump had broken with some Republicans who had called for privatising the VA in the wake of the 2014 scandal.
"Some candidates want to get rid of it, but our veterans need the VA to be there for them and their families," Mr Trump said.