Lawmakers returning from Thanksgiving have little time to come up with a plan to keep the government funded past Dec. 11, and the process may not go as smoothly as some had hoped.

Congress is tasked with figuring out how to allocate the funds approved in the budget passed by Congress last month.

GOP lawmakers warn policy riders will be tacked on the $1.1 trillion omnibus bill, a move Democrats decried as “a partisan poison pill.”

Republicans aim to push President Barack Obama’s hand by adding controversial measures, including placing restrictions on Obama’s Syrian refugee plan and removing certain Obamacare provisions, to the must-pass legislation.

While Congress faces its challenges in getting the legislation passed, optimism remains it will still meet the deadline.

A Senate Committee on Appropriations aide tells The DCNF the ongoing negotiations are progressing well and the upper chamber will likely take up floor consideration next week.

“We don’t have an update on timing, but floor consideration is more likely to be next week. Our goal remains enactment of FY16 appropriations by Dec. 11.,” the source says.

During a press conference Monday, White House press secretary Josh Earnest said the president will be open to signing a short-term continuing resolution to allow members to finish up the negotiations.

Follow Juliegrace Brufke on Twitter

Copyright 2015 The Daily Caller News Foundation