me. I.

I’m stealing this excellent answer from Grammarly:

Is it me or I?

Remove the other noun and say the sentence aloud. If it sounds wrong, then switch the pronoun.

Correct: “Did you invite Billy and me?”

Explanation: “Did you invite Billy?” “Did you invite me?“” They both sound correct, so me is correct.

Correct: “Should Billy and I go to the store?”

Explanation: “Should Billy go to the store?” “Should I go to the store?” Again, they both sound correct, so I is correct.

Incorrect: “Sally and me sent gifts.”

Explanation: “Sally sent gifts.” “Me sent gifts.” “Me sent gifts” doesn’t sound right, so substitute I:

“Sally and I sent gifts.”