Vice President Kamala Harris has cast herself as a candidate of the future, but she has been yanked back by the problems of the present as the Middle East lurches toward a wider war, a longshoremen’s strike threatens to undermine the country’s economy and Americans across the Southeast struggle to recover from a deadly hurricane.

The confluence of domestic and global traumas combined to knock Ms. Harris off a message that has been carefully calibrated since she took over for President Biden to showcase her as the avatar of “a new way forward,” as her slogan puts it.

The rare moment of turbulence for Ms. Harris interrupts what has been mostly smooth sailing in her two months as the Democratic presidential nominee. It also captures a conundrum of the vice presidency, a prestigious if mostly ceremonial posting. So far, Ms. Harris has been able to take advantage of the trappings of the position — Air Force Two was parked behind her for one rally in Michigan — without being trapped by it.

Ms. Harris, long a risk-averse politician, has tried to both claim Mr. Biden’s accomplishments as her own while defining herself as the future and the 81-year-old president as the past. She barely mentions the president’s name in her campaign speeches and makes a middle-class pitch that aims to correct for the inflation and high prices voters blame on Mr. Biden’s economic stewardship. This week’s events thrust Ms. Harris’s balancing act — of being both the No. 2 to Mr. Biden and atop the ticket in her own right — back into the spotlight.

The scenes of striking workers, hurricane devastation in the Southeast and missiles over Israel are unwelcome complications to her case to keep Democrats in power. And they were the backdrop of the vice-presidential debate between Gov. Tim Walz, her running mate, and Senator JD Vance, former President Donald J. Trump’s No. 2, on Tuesday night, when the senator argued that Republicans would usher in an era of stability.

The overlapping developments just as the calendar turned to October were a reminder that while Ms. Harris has framed her candidacy as a fresh start for the nation, she very much is part of the administration still in charge.

Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.

Thank you for your patience while we verify access.

Already a subscriber? Log in.

Want all of The Times? Subscribe.