Rep. Tulsi Gabbard (D-HI) introduced a resolution to the House of Representatives on October 31st titled, "Directing the President pursuant to section 5(c) of the War Powers Resolution to remove United States Armed Forces from hostilities in the Syrian Arab Republic that have not been authorized by Congress."
The idea of the bill is to remove any troops in Syria that do not have Congressional approval to be there, which is all of them. The resolution says, "Congress has not declared war with respect to, or provided any specific statutory authorization for, United States military participation in any activity related to securing, guarding, possessing, profiting off of, or developing oil fields in northern Syria. All of these actions are unconstitutional."
The resolution also points out that President Trump's new plan to stay in Syria to "secure the oil" is a flagrant violation of international law. The resolution says, "Oil, natural resources, and land in Syria belong to the Syrian people, not the United States."