WEST PALM BEACH, Fla. — Former President Donald Trump attacked Vice President Kamala Harris on immigration and criminal justice Friday in his second speech since President Joe Biden dropped out of the race, calling Harris a “bum” and a “failed vice president.”  

“She was a bum three weeks ago. She was a bum. A failed vice president in a failed administration, with millions of people crossing, and she was the border czar,” Trump said at Turning Point Action’s Believers…