washington tax overhaul push president donald trump fellow republicans prompt slew attack ads democrats progressive group say legislation would lavish benefit corporations rich harm middle class one ad launch tuesday warn republican tax plan would leave maine residents lose wilderness pan dark desert forest television spot pay group one penny urge state republican senator susan collins undecided plan whose vote could help decide fate senate lose way another one penny ad nevada republican senator dean heller face tough re-election race next year say senate plan tax break billionaires wealthy corporations pay high tax every day nevadans republicans look pass tax legislation within next weeks group spend millions ads aim sway public opinion final stretch debate legislation would cut corporate tax rate 20 percent 35 percent reduce individual income tax rat liberals see criticism tax plan potent issue 2018 u.s. congressional elections 435 house seat re-election along 33 senate house representatives pass tax bill last week senate plan vote lawmakers return washington week u.s. thanksgiving holiday republicans pressure deliver tax bill score first major legislative achievement since take control white house chamber congress january many democratic ads focus republicans think vulnerable 2018 elections others target republicans collins senate republicans slim 52-48 majority afford lose two republican vote still pass tax bill democrats unite opposition republicans say tax plan would provide across-the-board cut businesses middle-class workers along tax code simplifications would make easy individual taxpayers file republican tax writers contend plan would mean typical family four would see tax bill drop nearly 60 percent democrats say republicans use model family specific set tax circumstances families similar income level could end pay house senate plan cut individual tax rat eliminate popular deductions senate plan tax rate cut individuals temporary corporate rate cut permanent senate plan would repeal key provision affordable care act require individuals pay penalty health insurance nonpartisan joint committee taxation estimate senate bill would begin 2021 lead high tax bill average households earn 10,000 30,000 annually 2027 taxpayers earn 75,000 less annually would pay tax jct say democratic advocacy group priorities usa tuesday increase million tax-related digital ad campaign target voters 20 house district republicans vote house bill also plan ads state represent senate republicans collins maine heller nevada john mccain arizona bob corker tennessee lisa murkowski alaska democratic congressional campaign committee run digital ads 40 republican-held house district group save care run digital ads district 14 house republicans vote bill alaska arizona maine republican conservative group run ads national republican congressional committee start run spot multiple district last week promote tax bill america first policies nonprofit run former trump campaign advisers spend 135,000 week spot conservative radio program democrats advocacy group launch blitz ads attack tax plan