This is an oddly fascinating quote from a GOP staffer:
Republicans are poised to reject a White House offer, TPM has learned, that would cut over $30 billion in current spending because of disagreements over whether the package should include cuts to mandatory spending programs. Democrats are pushing for such cuts, which include the big entitlement programs, though the specific cuts they're proposing remain unclear. In an ironic twist, Republicans oppose those cuts and want to limit the negotiations to non-defense discretionary spending, a smaller subset of the federal budget.
....Asked about the offer the White House has floated, a top Republican aide says, "This debate has always been about discretionary spending — not autopilot 'mandatory' spending or tax hikes."
This isn't a big surprise or anything, but I've never seen it put quite so baldly. This guy is literally saying that Republicans don't want to cut spending, they only want to cut nondefense discretionary spending. That's it. This, of course, is the one part of the budget that's (a) too small to really matter much, and (b) includes social welfare spending for poor people. Again, no big surprise, but at least it clears up what Republicans really care about cutting. And it's not the deficit.