You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

Senator @JoniErnst of IOWA has a new book, “Daughter of the Heartland: My Ode to the Country That Raised Me.” The first female combat veteran elected to serve in the U.S. Senate – Joni is as tough as they come and a true inspiration for women everywhere. Get her book today! https://t.co/yKxUBasreY