President Donald Trump posted a Wednesday afternoon tweet in which he declared that the “OPEC Monopoly” is “doing very little” to reduce gas prices and demanded that they help lower them “NOW!”

“The OPEC Monopoly must remember that gas prices are up & they are doing little to help. If anything, they are driving prices higher as the United States defends many of their members for very little $’s. This must be a two way street. REDUCE PRICING NOW!” Trump tweeted.