Vice President Kamala Harris and President Joe Biden will co-host a campaign event in Pennsylvania, a crucial state for the election, on Monday, celebrating unions and highlighting Biden’s legacy with workers.

The duo will attend and speak at the Labor Day parade in Pittsburgh, marking the first time they have spoken together since the surprise election changes that rekindled enthusiasm for the 2024 race six weeks ago.

Harris and Biden will also attend an event at a local union hall, along with Pennsylvania Gov. Josh Shapiro and Sen. Bob Casey, who is seeking re-election. Local and national leaders of major unions, including the International Brotherhood of Electrical Workers, the AFL-CIO and the United Steelworkers, will be in attendance.

Though they recently appeared together at a White House event promoting Medicare drug savings and both attended the first day of the Democratic National Convention (DNC) in Chicago, they will appear on the campaign trail together for the first time on Monday. Some political analysts have called the effort a “risky move” as Harris tries to stay in touch with her unpopular boss.

Harris appears unconcerned, aiming to bolster Biden’s pro-union legacy in Pittsburgh on Labor Day. Biden has declared himself the most pro-union president in history and became the first sitting president to walk an active picket line. Monday’s visit carries special significance for the president given his longstanding ties to Pittsburgh, where he has attended events for more than 15 years and launched his 2020 campaign at a Teamsters union hall.

Harris, meanwhile, will make her first appearance in the Steel City as a Democratic candidate as part of her Labor Day campaign.

As September begins and the campaign season winds down, Pennsylvania has emerged as a key battleground for both parties. Recent polls show a neck-and-neck race between former President Donald Trump and Harris, with Pennsylvania’s 19 electoral votes up for grabs.

Harris has been actively campaigning in Pennsylvania in recent weeks, while Trump visited the Keystone State on Friday. His visit, intended to focus on energy and fracking, ended with a rambling defense of his campaign’s actions, leading to an altercation between a Trump 2024 staffer and an Arlington cemetery official.

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