Kellyanne Conway tweeted she was hanging out with Obama's Republican half-brother, Malik Obama.
He told her why he was voting for Trump.
Malik Obama was invited by Trump to be a guest in Las Vegas for the final debate. He said he was excited to attend and that "Trump can make America great again."
Back in July, Donald Trump had tweeted that "Obama's brother" was going to vote for him.
Malik Obama is three years older than President Obama and was raised in Kenya.
Conway also announced on Twitter that Marcus Luttrell, Pat Smith and Wayne Newton will be Donald Trump's guests tonight.