https://www.nytimes.com/2017/01/26/us/po....html?_r=0
Quote:But later on Thursday, Mr. Spicer convened reporters again to say that the tax was just one option under consideration to pay for the wall. Reince Priebus, the president’s chief of staff, told NBC News that the proposal was just one in a “buffet” of options.
The confusion caused the Mexican peso to bounce sharply with each new development.
The House proposal, which Mr. Trump had previously criticized as too complicated, would not actually increase federal revenue. The gains from taxing imports would be offset because the government would stop taxing exports and would lower the corporate tax rate.
In addition, the import tax would not be collected from Mexicans. It would be collected from companies that sold Mexican products in the United States.
Mr. Trump would need new legislation to enact the proposal.