A new GOP bill would give each taxpayer $4,000 to take a vacation anywhere in the US through the end of 2021

· A new bill from GOP senator Martha McSally would encourage people to travel around the US by effectively paying them $4,000.
· The refundable tax credit could be applied through the end of 2021, and the trip must be 50 miles beyond a person's "principal residence."
· But experts say low-income people would be left out of...