WATCH: Joe Biden Battles
The new round, revealed on Tuesday, more than doubles the company's value to $8.9 billion, up from $3.9 billion only a year ago. It takes the company's overall funding to about $2.5 billion after eight years.
The new round, revealed on Tuesday, more than doubles the company's value to $8.9 billion, up from $3.9 billion only a year ago. It takes the company's overall funding to about $2.5 billion after eight years.