tameka & usher *Sorry Usher. She’s not giving and and she’s not going away. 🙁

Usher’s ex, Tameka Raymond, and her latest request for a retrial in her custody battle with the singer was rejected by the judge in the case.

As we previously reported, Tameka filed docs earlier this month asking for another trial after Usher was awarded primary custody of the couple’s two kids.

Tameka claimed the judge is biased because she accepted campaign donations from Usher’s lawyer.

But this week, the same judge rejected Tameka’s motion — claiming it’s been public knowledge since 2008 that Usher’s lawyer donated to her re-election campaign … and if Tameka cared to look, she would have found out long before her custody trial.

As far as the judge is concerned … Tameka’s just a sore loser.

TMZ says sources close to Tameka tell them that she plans to appeal.