Firstly, we only got 2.5% GDP growth for 2018, well below the 3% promised, below even Obama's best mark in 2015 of 2.88%.
Secondly, how much did consumer spending and disposable income increase prior to the tax cut???? You've left that data out for obvious reasons.
"...the 3% promised?" You believe campaign rhetoric? You probably believed the "Hope & Change" thing, also.