Just in case anyone had forgotten, Gov. JB Pritzker of Illinois released a nearly four-minute video this week promoting his accomplishments in office.

If there were any questions about the home life of Senator Mark Kelly of Arizona, his wife, Gabrielle Giffords, resurfaced a testimonial about their loving marriage and posted it to social media.

And if someone was wondering about, say, fund-raising ability, Govs. Tim Walz of Minnesota and Andy Beshear of Kentucky were scheduled to appear at last-minute simultaneous events on Monday afternoon in Minneapolis and Chicago. Transportation Secretary Pete Buttigieg was also set to do a fund-raiser on Saturday night in New Hampshire.

It is all for an audience of one: Vice President Kamala Harris. As the clock ticks down on her timeline to select a running mate, whom Ms. Harris is expected to announce by Tuesday, the men still in contention are doing whatever they can to showcase what they could bring to the ticket and keep themselves in the public eye.

That thirst has prompted a flood of gauzy videos, cable news appearances, fund-raisers and other stops — Mr. Walz will campaign for Ms. Harris on Sunday, also in New Hampshire — serving as a capstone to what has been a two-week sprint toward the first major decision of her presidential campaign. The vetting team, led by former Attorney General Eric H. Holder Jr., completed its work on Thursday, leaving the choice in Ms. Harris’s hands after she conducts in-person interviews and spends time deliberating with her advisers.

The lobbying efforts come as Ms. Harris is having to choose a running mate without the typical months to spend time with potential candidates, weighing who would be best as both a political and a governing partner.