President Obama on Monday said he is “not at all resigned” to the prospect of a government shutdown with just hours left for the House and Senate to reach an agreement on a spending bill.

Obama said that he expected that he would speak with congressional leaders later today and tomorrow. He added that he believed there was a “straight-forward solution” to resolve the impasse.

The president’s comments came at the White House after a bilateral meeting with Israeli Prime Minister Benjamin Netanyahu and as lawmakers remain deadlocked on a spending bill to avert a government shutdown at midnight.

Conservative lawmakers hope to use a continuing resolution to defund or delay key elements of the president's healthcare reform bill. A House-passed bill would delay Obamacare for one year, while funding the government until Dec. 15.

Senate Majority Leader Harry Reid, D-Nev., has said the upper chamber will reject the measure, leaving the House will little time to offer a new bill.

The House Democratic and GOP conferences will meet separately on Monday to plot strategy.

White House Correspondent Brian Hughes contributed to this report.