Please tell me again how the cynically named Tax Cuts and Jobs Act helps the middle class

Sources:

• Membership of the 115th Congress: A Profile.  (Congressional Research Service, 11/13/2017)
• Des Moines Register, 11/30/2017
• U.S. Census Quickfacts

Here's how much the House tax bill could cost Iowa's grad students.  (Des Moines Register, 11/30/2017)

The Iowa City university has about 2,818 graduate students who last school year received tuition waivers valued at $24.9 million, according to university officials. Under the House bill, if a student received an average tuition waiver of nearly $9,000 and was in the 15 percent income tax bracket, they would pay $1,325 in income tax on the award.

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After all, it's what got Donald Trump elected.

Related posts:
Racial and ethnic makeup of the 115th Congress.  (11/30/2017)
Plutocracy in action: Donald Trump's America First tax cuts line the pockets of foreign investors with $520,000,000,000.  (11/30/2017)
Donald Trump's pants on fire.  (9/29/2017)