Biden inches towards declaring a 2020 presidential bid

Former US vice president Joe Biden dropped teasing hints Tuesday that he could soon announce a 2020 White House campaign, telling an enthusiastic crowd that he may need their energy "in a few weeks."
"I appreciate the energy you showed when I got up here," the 76-year-old told the fire fighters. "Save it a little longer. I may need it in a few weeks."
"That's what the next president of the United States needs to understand, and that's what I don't think this current president understands at all."
He hit out at the tone of the Trump era, saying extremism is on the rise and "mean pettiness has overtaken our politics." And he took aim at the current administration's policies, including the Republican "tax cut for the super wealthy."

He has connected compassionately with working class Americans over the decades, and reflected that position again Tuesday, stressing that "unions built the middle class."