WASHINGTON — Mercy for me, but not for thee. Former first son Hunter Biden trashed President Trump’s use of the clemency power while acknowledging the hypocrisy of him doing so after his father Joe gave him an “unconditional” pardon shortly before leaving office. “I’m completely biased as it relates to what my dad did for me. I fully understand how uniquely situated I am in being privileged enough to have received a pardon from my father,” the Biden scion said when asked by MeidasTouch if the pardon power needs reform. “I don’t think that the founders ever imagined Donald Trump....