This Question Will Destroy the Republican Economic Argument

The Republicans have used supply side economics to justify tax cuts for the rich since 1980.  Starting with Reagan, the total combined debt accumulated under 17 years of Republican economic leadership is 5.170 trillion, or a 10.61% compound annual growth rate.  

The argument used to justify the tax cuts is they will sufficiently stimulate the economy to pay for the increased debt that originally funds the tax cut.

When will the economy grow fast enough to pay down this Republican incurred debt?