President Joe Biden gave Vice President Kamala Harris

WASHINGTON— President Joe Biden gave Vice President Kamala Harris a robust endorsement at a Labor Day rally, telling union workers during their first joint campaign appearance since he left the Democratic ticket that she’s more than capable of leading the country.

“Let me tell you about this woman,” Biden told workers in Pittsburgh with Harris at his side. “I know her,” he said, putting his hand on her shoulder. “I trust her.”

Biden said that choosing Harris was “the single best decision I made as president of the United States of America.”

“I know she’ll be a good president. I know it,” he added.

Harris, who Biden said he’s observed behind the scenes with experts on foreign and domestic policy, “has a backbone like a ramrod. And she has the moral compass of a saint. This woman knows what she’s doing. Folks, I promise you, if you elect Kamala Harris as president, it will be the best decision you have ever made.”