From CNNMoney.com:

The House has been drafting and re-working legislation for a month, and a key committee is set to delve back into it on Tuesday. The Senate will begin discussing its lengthy version on Thursday and is expected to get into the details of the legislation next month.

But Congress is far from reaching consensus on a bill that could get the filibuster-proof 60 votes in the Senate and pass both chambers.

And there are several key issues on which the ideological gulf between the Senate and House, or between Republicans and Democrats, may not be bridgeable. The divisions could threaten passage of meaningful legislation or drag out the debate and even prevent final passage.

Read the article to see what those issue are.