AP Explains: Trump pushes questions about Joe Biden’s son

WASHINGTON (AP) — Looking to undermine Democratic rival Joe Biden, President Donald Trump’s campaign is pushing a familiar line of attack: unverified allegations about Biden’s son and his foreign business ties. But reporting in the New York Post, and the emergence of a man who says he worked with Hunter Biden, have raised more questions than answers, including about the authenticity of emails at the center of the story. The origins of renewed…