. >> tax expert, joseph rosenberg says one area where republicans fell short. >> was their promise to make the tax code simpler. >> introducing a lot of additional complexity ttz. >> not going to do our t >> i think the postcard is out. >> controversy simmered over deduction added to the bill at the last minute. analysts say it would primarily benefit wealthy commercial real estate investors. like, president trump. or tennessee republican, bob corker. >> of the benefits are larger, the more income you have. >> if i own an apartment that i rent out, i don't benefit from this. >> you might benefit. but not very much. >> corker insisted to day that he had no knowledge of this provision when he announced his support on friday. and gop leaders backed him up. but democrats say, jeff, this is a needless give away no matter what to an industry that is already thriving. >> nancy cordes, thank you. >> the director of the centers for disease control its defending the agency after a report that its compiled a list of seven dirty word that should not be used when asking congress for money. dr. jon

. >> reporter: tax expert joseph rosenberg says one area where republicans fell short was their promise to make the tax code simpler. >> it's introducing a lot of additional complexities. >> so we will not be able to do our taxes on a postcard? >> i think postcard is out. >> reporter: controversy similarrered over a deduction added to the bill at the last minute. analysts say it would primarily benefit wealthy commercial real estate investors, like president trump or tennessee republican bob corker. >> the benefits are larger the more income you have. >> reporter: so if i own an apartment that i rent out, i don't benefit from this? >> you might benefit, but not very much. >> reporter: corker insisted today he had no knowledge of this provision when he announced his support on friday, and g.o.p. leaders backed him up, but democrats say, jeff, this is a needless giveaway no matter what to an industry that's already thriving. >> glor: nancy cordes, thank you. the director for the centers for disease control is defending the agency after a report that it's compiled a list of seven dirty wor