After serving his sentence, Littlejohn, 38, will have 3 years of supervised release. He will also have to pay a $5,000 fine, according to CBS News.
Littlejohn was charged in September and pleaded guilty the following month to one charge of unauthorized disclosure of tax returns and information about the returns. He received the maximum sentence of 5 years on Monday.
"He targeted the sitting president of the United States of America, and that is exceptional by any measure," federal Judge Ana Reyes said at his sentencing. "It cannot be open season on our elected officials."
