Some activists step up criticism of Shapiro and Kelly as Harris closes in on naming a running mate

WASHINGTON (AP) — Democrats have unified with remarkable speed behind Vice President Kamala Harris as she has taken over the top of the party's ticket heading into the November presidential election.

It may be another story when it comes to a running mate.

As Pennsylvania Gov. Josh Shapiro and Arizona Sen. Mark Kelly have emerged as among the possible finalists, both have faced criticism from some organizations and activists who might otherwise be supportive of Democratic causes, potentially undermining the party's newfound unity barely two weeks after Harris entered the race.

The vice president's team says she is interviewing six possible choices over the weekend before an announcement expected Monday. The next day, she and her running mate will appear together at a rally in Philadelphia, then visit six more swing states.