The product of hours and hours of hard-fought negotiations could be lost Thursday if House Democrats decide, just hours before the government is to due to shut down, to band together and rebuff a trillion-dollar federal spending bill over two so-called “poison pill” policy riders.

Every Democrat voted with 16 Republicans against the rule to advance the “cromnibus,” with the GOP lawmakers voicing discontent over the lack of explicit language in the legislation to prohibit President Barack Obama from carrying out his executive orders on immigration.

At a certain point, the votes were tied. At the very end, Republican leaders pressured two members to vote “yes,” bringing the final tally to 214-212.