“In the final days of the Obama administration, someone leaked a key nugget of information to The Washington Post about Michael Flynn, President-elect Donald Trump’s national security adviser.
“Then, since and today, Trump and Republicans have argued that was an abuse of power and a breach of the law, one that, in their view, needlessly cost Flynn his reputation, his liberty and a fortune in legal fees.
“That’s why, three very long years later, Trump and his supporters sought payback with evidence from that era they hope will cause political problems for a man who was in the thick of it — former Vice President Joe Biden, Trump’s likely opponent in the general election this year.”
Read more at NPR