Yes, indeed. The chart shows what tax rates were before and after the Trump tax cuts. As anyone can see, the largest cuts went to the middle-income brackets, i.e., the second, third, and fourth brackets.
The favorite argument, really the only argument, that liberals offer is to cite the irrelevant gross dollar reductions that result from the tax cuts. This is a misleading, juvenile argument.
If John Doe makes $800K per year, his 2.6% Trump tax cut equals a savings of $20,800 per year. If Mary Jane makes $60K per year, her 3% Trump tax cut equals a savings of $1,800 per year. Obviously, Mary is actually the one who gets to keep a larger share of her income. John's gross dollar reduction is only larger than Mary's because his income is 13.3 times higher Mary's. John is getting to keep a smaller share of his income than Mary is getting to keep.
Or, think of how silly citing gross dollar amounts would be when you're talking about pay raises. If Mary Jane, earning $80K per year, gets a 6% raise, she gets a $4,800 raise in gross dollars. If John Doe, earning $1.5M per year, gets a 3% raise, he gets a $45,000 raise in gross dollars. Obviously, Mary is getting the better raise--her pay raise is double John's pay raise. John's gross-dollars increase is only more than Mary's because his salary was nearly 19 times higher than Mary's when they got the raises.