I think that there are several signs that the US is struggling toward a new progressive era, though I'm not ready to declare the end of Gilded Age II.
- Election and almost-election of unabashedly progressive politicians like Bernie Sanders and AOC
- Small-dollar financing as an alternative to big-money donors
- Progressive policies in places like Minnesota
- Increased labor-union activism
But there are disquieting signs that the US is starting to resemble its pre-Civil-War years.
The US had been divided about slavery for all of its earlier years, and that is evident in the original Constitution, which referred to enslaved inhabitants of states as "other Persons", and compromised on counting them as 3/5 of free people for determining Congressional representation. But in the early days, many slaveowners seemed half-regretful about slavery, not enjoying being masters, but then again, not wanting to give up the lifestyles that that their slaves' labors had made possible. Something like some alcoholic who cannot get him/herself to stop drinking CH3CH2OH.
But by the early 19th cy., slavery had become very profitable, with assistance from Eli Whitney's cotton gin ("cotton engine"), a machine that separates seeds and cotton fibers. That machine made it unnecessary to remove cotton seeds by hand, and that helped make cotton growing a major industry in the Southern states.
Slavery apologists defended slavery as a great thing, with some slavery apologists making slavery seem like benevolent feudalism, and with some of them proposing the
Mudsill theory of society, that higher civilization depends on having a class of people who do all the menial labor to support it.
Northerners chafed under the "slave power" or "slaveocracy", what they considered domination of national politics by the slave states. Many northerners didn't like the idea of having to compete with enslaved workers, or at least that's the theory that I've often seen.
In 1820, the free states and the slave states agreed to the Missouri Compromise, that new states were to be admitted in pairs, one free state and one slave state. That helped preserve the balance of power between the two blocs of states for the next three decades, but it broke down in the 1850's, where pro-free-state and pro-slave-state factions physically fought each other in the Kansas Territory, making it "Bleeding Kansas".
In 1857 was the
Dred Scott v. Sandford Supreme Court decision, often called the worst one ever.
- Persons of African descent cannot be and were never intended to be citizens under the U.S. Constitution. Plaintiff is without standing to file a suit.
- The Property Clause is applicable only to lands possessed at the time of the Constitution's ratification (1787). As such, Congress cannot ban slavery in the territories. The Missouri Compromise is unconstitutional.
- The Due Process Clause of the Fifth Amendment prohibits the federal government from freeing slaves brought into federal territories.
Also in the 1850's, the Whig Party broke up, split by the slavery issue. The party formed in the 1830's from opponents of President Andrew Jackson, and it spanned both North and South. But that ended up to be the party's undoing.
The Republican Party emerged as its successor, with many ex-Whigs and the Free Soil Party joining it. Among the ex-Whigs was Abraham Lincoln, the party's first President.
Party divisions of United States Congresses