Specifically, they worried that it would be too easy for the Senate to ignore the House vote, leaving Congress with a simple short-term spending bill that doesn't touch ObamaCare at all. It's somewhat technical, but the details of how the plan might work can be found here.

Opposition from within the Republican ranks forced leaders to delay the continuing resolution. That means an attempt to take a big bite out of ObamaCare will be left until next week.

Today, the House will try to take a smaller bite out of the law. Members will finish work on a bill that would block ObamaCare's health insurance subsidies.

Again, it's somewhat technical. Republicans say the Obama administration issued a rule that will allow people to get subsidies for their health insurance even when they're not eligible.

The administration says that argument is overstated and that the rule offers states some flexibility on checking for eligibility without giving people undeserved subsidies. If you want more than that, we covered it in detail here on Wednesday.

Once the House passes this bill, its work is done for the week.

The Senate starts at 9:30 a.m. and will resume its work on S. 1392, the Energy Savings and Industrial Competitiveness Act. This bill is meant to improve the energy efficiency of buildings.

As of Wednesday, no votes on the bill had been scheduled, and Senate Majority Leader Harry ReidHarry ReidConservative Senate candidate calls on GOP to end filibuster Ex-Reid aide: McConnell's 'original sin' was casting ObamaCare as 'partisan, socialist takeover' GOP faces growing demographic nightmare in West MORE (D-Nev.) said he was still looking for an agreement on amendments.

On Wednesday, Sen. David VitterDavid VitterOvernight Energy: Trump set to propose sharp cuts to EPA, energy spending Former La. official tapped as lead offshore drilling regulator Former senator who crafted chemicals law to lobby for chemicals industry MORE (R-La.) was demanding a vote on a healthcare amendment and blocked others from calling up their proposals for changing the bill.