WASHINGTON (AP) — House Republican leaders struggled Tuesday to win over conservatives for a plan that would keep the government running through mid-December and force the Senate to vote on derailing implementation of President Barack Obama’s signature health care law.

House leaders unveiled the plan to rank-and-file Republicans Tuesday but it was met with skepticism from some prominent conservatives and landed with a thud among grassroots architects of the “defund ‘Obamacare'” drive.