Mark Meadows, the chairman of the ultra-conservative House Freedom Caucus tells me there's "a growing acceptance among conservatives to expand the budget window to 20 years that would allow for more robust tax cuts."
"Providing for tax cuts over a 20-year period is about as permanent as you can find on Capitol Hill," Meadows told me on Monday.
What he means: Meadows is referring to a non-traditional idea that's gaining momentum in conservative circles — to change budget rules so that tax cuts that add to the deficit can last for 20 years or longer, rather than expiring after 10 years. If Republicans do this, they'll be able to cut taxes dramatically without worrying about raising new revenue to "pay for" the cuts for at least two decades. By then, their theory goes, the economy will be roaring from a streak of economic growth, and politicians will likely do another round of tax reform.