So, looks like he can be the next Herman Cain/Larry Elder/Wayne Dupree/etc. ranting about how African-Americans should leave the "Liberal Democrat Plantation" every 5 minutes.
From the article GeorgiaModerate linked already about his resignation:
“Turn the lights off, I have left the plantation,” Jones said in a statement. “Someone else can occupy that suite. Therefore, I intend not to complete my term effective April 22, 2020.”
“I don’t plan to leave the Democratic Party because somebody’s got to be in there to hold them accountable —hold them accountable to how they are treating black people (and) root out the bigotry,” Jones said on The Rashad Richey Morning Show shortly after announcing his resignation.
“I intend to help the Democrat Party get rid of its bigotry against Black people that are independent and conservative,” Jones said in the statement announcing his resignation. “I endorsed the White guy (Donald J. Trump) that let Blacks out of jail, and they endorsed the White guy (Joe Biden) that put Blacks in jail.”
Shibboleth: no actual Democrat says "Democrat Party."