washington near end president donald trump rocky first year office white house aid view imminent victory tax overhaul start point strengthen weak approval rat ahead key congressional elections next november republicans say effort political turnaround must include rein trump habit lash critics twitter white house aid say recognize trump poll number need start rise limit damage 2018 elections fellow republicans continue control congress stake democratic takeover house representatives senate could jeopardize trump agenda grow move think successes like tax vote important us say senior white house official administration officials say trump would seek use momentum generate big tax rewrite 30 years help propel legislative priorities include infrastructure program welfare reform final passage republican tax bill expect wednesday would trump first major legislative victory since take office january tax bill carry risk republicans insist boost economy job growth democrats condemn giveaway corporations rich reuters/ipsos poll 52 percent adults say oppose tax plan 27 percent support unless trump practice great discipline republican strategists see disaster loom congressional elections third 100-member senate 435 seat house grab stop tweet start new year new level message discipline try work get poll number back say republican strategist scott reed get focus job approval number historic death watch midterm elections record strong discipline key year two reed say trump repeatedly cause controversy early morning tweet particularly aim individuals raise hackle recently tweet democratic senator kirsten gillibrand would anything campaign donations definitely moments like see stop one senior aide say early morning stuff helpful last weeks talk white house among trump outside advisers hire senior political adviser akin former president barack obama political aide david axelrod former president george w. bush adviser karl rove white house political director bill stepien see data-driven adviser trump see strategist anyone steep politics like former white house chief staff reince priebus former chief strategist steve bannon aid say discussion get trump events small settings order show personal side president standard appearance go event deliver speech big crowd leave trump historical trend party hold white house typically lose seat first congressional elections president initial two years office democratic president bill clinton 46 percent approval rat november 1994 party still lose 54 seat house eight senate trump 41 percent mid-december poll nbc news wall street journal republican strategist ford connell say trump do much keep conservative base support happy expand popularity need ease voters concern fitness office win people like independents never-trumpers make american people feel comfortable president say connell achievements quite strike connect public trump aid hope win tax stem slide poll number