washington u.s. republican senator mike lee utah say monday support legislation overhaul u.s. tax system leave two republicans undecided bill approach final senate vote week finish read final tax cut job act cut tax work utah families proudly vote lee say message release twitter republicans control 100-seat senate 52-48 margin lose support two party lawmakers bill pass republican senators susan collins jeff flake yet say whether support legislation senator john mccain brain cancer present vote republican senator lee say vote tax bill