The US House of Representatives rejected legislation on Wednesday that would have forced President Barack Obama to pull all US troops from Iraq and Syria as soon as one month from now, with nearly one-third of the chamber in support of the measure.
The House voted 288-139 to defeat the concurrent resolution, which would have required Obama to remove the troops within 30 days, or by the end of 2015 if the administration determined it was not safe to do so within the 30-day timeframe.
The "yes" votes were cast by 120 Democrats and 19 Republicans, while the "no's" came from 222 Republicans and 66 Democrats.
The resolution was introduced by Democratic Representatives Jim McGovern of Massachusetts and Barbara Lee of California and Republican Representative Walter Jones of North Carolina.
The lawmakers said they hoped their introduction of the measure, allowed under the War Powers Authority, would lead to a broader debate on a formal authorisation for the use of military force for the campaign against Islamic State fighters in Iraq and Syria.
Obama began air strikes against the militant group last August, but lawmakers have not yet debated or voted on an authorisation for the conflict.
Concerns in Congress about the US mission intensified on June 10 when Obama ordered the deployment of 450 more troops to Iraq to advise and assist Iraqi forces, in addition to 3,100 already there.
There currently are no US troops in Syria.