Myth: Sen. Elizabeth Warren (D-Mass.) claims that "one group of economists after another have looked at this bill and it won’t do a darned thing.”

Fact: 137 economists said, “Economic growth will accelerate” under the Tax Cuts and Jobs Act. 

https://www.cnbc.com/2017/11/29/137-economists-support-gop-tax-reform-bill-in-open-letter-commentary.html

Myth: In a deleted tweet, Sen. Kamala Harris (D-Calif.) claims that “On average, middle class families earning less than $86,000 would see a tax increase …”

Fact: The Washington Post gave her "Four Pinocchios" and said, “Actually, it’s the opposite. Most families in that income range would get a tax cut.”

https://www.washingtonpost.com/news/fact-checker/wp/2017/11/02/senate-democrats-falsely-claim-gop-tax-plan-will-raise-taxes-for-most-working-class-families/?utm_term=.6aa8aa26044b

Myth: Sen. Chuck Schumer (D-N.Y.) claims that tax reform is “kicking 13 million people off health insurance to give tax cuts to the wealthy.”

Fact: The Washington Post says, “inaccurate." This bill only repeals the individual mandate’s penalty, which means Americans will no longer be forced to buy insurance they don’t want or can’t afford.

https://www.washingtonpost.com/news/fact-checker/wp/2017/11/16/schumers-claim-that-the-gop-is-kicking-13-million-people-off-of-health-insurance/?utm_term=.10deabd7fa65