Don’t resign! Innocent until proven guilty in a court of law. If found guilty, let the voters decide.
The Supreme Court has defined quid pro quo into virtual obscurity.
It would be hard for a prosecutor to prove you paid a kid to mow the lawn for you unless you paid him within fifteen seconds of his completing the job—and it was caught on video and audio that you both agreed that was why you paid him and that was why he did the job.