An income tax was found by SCOTUS to be unconstitutional in Pollock vs. Farmers at the turn of the 20th century
On this date in 1895, the U.S. Supreme Court decided Pollock v. Farmers Loan Trust Co., striking down the federal income tax of 1894. The bill had passed as part of a general reduction in tariffs, although President Cleveland was no fan, letting it become enacted without his signature. The tax –...
taxfoundation.org
So, the DNC and President Wilson simply added it to the Constitution with the 16th amendment.
Easy Peasy, lemon squeezy!!
How did they do it? At that time alcohol sales funded the Federal government to a large degree, however, alcohol abuse during that time was at epidemic levels, wreaking havoc on society. So, the democrats allied themselves with evangelicals to outlaw alcohol, knowing that when they did that they would need to replace the revenue. So, democrats convinced evangelicals to support a national income tax to replace the revenue lost by alcohol once they outlawed it. First, they had to pass the income tax though, which they did. And to their credit, the democrats came through on their end to outlaw alcohol as they made Prohibition a Constitutional amendment after they had passed the Income tax as a Constitutional amendment. However, the democrats never planned for Prohibition to work. They even had bootleggers come to the Capital itself to make deliveries to the Congressmen. They halfheartedly tried to enforce Prohibition, but let if fail miserably, much like they don't enforce laws in immigration. They just shrugged their shoulders and said that Prohibition does not work, so they later repealed Prohibition. In addition to that, democrats reinstituted the taxes going back to the federal government from alcohol sales. In a few short years, democrats more than doubled the income pouring into the Federal government, which has only exponentially increased over time.
But today more people die from alcohol than any other drug as the state now sells it directly to the public.
This is how much the government cares about YOU!
The icing on the cake was, democrats blamed evangelicals for Prohibition to this very day.