Congress could definitely throw a wrench into the gears of the ACA.<quoted text>
As usual you are wrong. Congress fund all programs. They control the purse strings. They can refuse to fund any program they wish to. If they, congress does not fund nobamakare it will go away. Period.
A clear majority of tax payers do not want the ACA to go into full effect. Key words: tax payers. The majority of ACA supporters are those looking for our money (aka Obama's stash) to subsidize their coverage.