Adviser to GOP Senate candidate Corey Stewart calls McCain a 'piece of sh*t even in death' hours before memorial service

A campaign consultant working for Virginia U.S.  Senate candidate Corey Stewart attacked the late John McCain  Thursday afternoon, calling the Arizona Republican a "POS" [piece of sh*t] on Facebook.

According to the Daily Beast, Rick Shaftan attacked McCain in defense of the former senator's presidential running mate Sarah Palin who was not invited to the funeral.

"A POS even in death. She was the only reason millions of Americans voted for this loser," he wrote over a Facebook post of a Huffington Post article reporting the snub.

According to the report by the Beast, Shaftan --who has served as spokesperson for the pro-Confederacy Stewart -- once referred to majority-black U.S. cities  as “shitholes” while warning against opening businesses in black communities.

You can see a screenshot of the offensive Facebook post below: