WASHINGTON — The Senate on Monday passed a revised bill to reduce the cost of housing in the US that will bar institutional investors from buying up single-family homes, among other provisions. The revamped 21st Century Road to Housing Act was approved in the upper chamber in a 85-5 bipartisan vote. Sens. Tommy Tuberville (R-Ala.), Ron Johnson (R-Wis.), Rick Scott (R-Fla.), Rand Paul (R-Ky.) and Mike Lee (R-Utah) voted against the measure. Banking Committee Chairman Tim Scott (R-SC) said in a