Conservative lawmakers and groups are pushing Republican leaders to pass a short-term government spending bill so that they will have more power to defund any executive action from President Obama on immigration as well as other measures.

Government funding runs out Dec. 12, and House Speaker John Boehner, R-Ohio, and incoming Majority Leader Mitch McConnell, R-Ky., are leaning toward passing an omnibus appropriations bill funding the government through the end of the fiscal year on Sept. 30.