In English, you'd say to candidates that you'll vote for them. How would you say this in German? Something like:
Hey Stefano, go for it. You have my vote.
Another common alternative:
Meine Stimme hast du.
Wörtliche Übersetzung:
Du hast meine Stimme.
Would be OK, but here are more ideas:
Literally it means: "You can count on me"
(no matter what, if that person proofed to be trustworthy in the past.)