How many years must a resident consecutive before becoming president of the US?

Answer 1

I think you mean, "how many years must you be a resident of the United States in order to become president?". You must be a natural born citizen of the United States in order to become President of the United States. Foreign-born persons may be elected to public office, but may not become president. Arnold Schwarzenegger was born in Bavaria, Germany, but has become the Governor of the state of California in the United States. He became a citizen of the United States, but because he was foreig-born, he may never become president.