That word choice always sounds snooty and elitist to me.
Its not, there were thousands of people working on his campaign he is indicating that it is not just about him. Obama is the one who says "I" and "me" in every sentence.
“there were thousands of people working on his campaign”
Then he should have said, “My team and I...”, or something similar.
Referring to oneself in the plural is something that only monarchs do. It’s off-putting and arrogant.