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:

The US unilateral withdrawal from the JCPOA and maximum pressure on Iran lies at the root of the Iranian nuclear crisis. Upholding and implementing the JCPOA is the only right way out of the Iranian nuclear issue. https://t.co/M14IcBw4a7