U.S. Senator Bernie Sanders plans to join fellow Democrat Hillary Clinton on Tuesday at a rally in New Hampshire, their campaigns said, an appearance where he is expected to endorse his rival after a hard-fought presidential primary campaign.

Sanders and Clinton will discuss “their commitment to building an America that is stronger together and an economy that works for everyone, not just those at the top,” according to a statements released early on Monday from both campaigns.

Sanders, of Vermont, has resisted endorsing the former U.S. secretary of state, senator and first lady, since she clinched the Democratic nomination last month. Instead, he chose to continue his campaign as leverage to win concessions on his progressive policy agenda and reforms to the Democratic Party’s nominating process.

In a speech to supporters last month, Sanders vowed to help Clinton defeat Republican Donald Trump in the Nov. 8 presidential election but did not end his campaign.

Other prominent Democrats have rallied around Clinton, including President Barack Obama, Vice President Joe Biden and U.S. Senator Elizabeth Warren, a favorite of the party’s liberal wing.

Reporting by Doina Chiacu; Editing by Lisa Von Ahn

Hillary Clinton and Bernie Sanders shake hands before the start of the Democratic presidential candidates debate in Durham, New Hampshire, February 4, 2016.  REUTERS/Carlo Allegri