washington republican presidential nominee donald trump face erode support party lewd remark women go second presidential debate democrat hillary clinton sunday need demonstrate remain credible candidate pressure 70-year-old trump debate intense must parry attack clinton explain good alternative must also show apologetic side stop republican supporters give trump already uphill battle win white house nov. election disclosure 2005 video could hear talk crudely women reuters-ipsos poll clinton lead five point friday video surface question whether trump quest presidency fresh controversy add air unpredictability p.m. edt debate washington university st. louis second three schedule presidential debate long-running u.s. election contest enter final weeks town hall-style debate undecided voters pose half question debate two moderators pose others vice presidential run mate mike pence say sunday trump need show contrition pray family look forward opportunity show heart go nation tomorrow night pence say statement crisis put republican national committee tight spot less month go election day trump would resign nomination allow republican leaders choose successor new york businessman show sign step despite increase call elect leaders let pence become nominee media establishment want race badly never drop race never let supporters trump tweet sunday trump tower new york first debate sept. 26 trump repeatedly put defensive clinton never let accusations go unanswered result miss opportunities use speak time draw attention clinton perceive weaknesses republicans say trump need perform like pence deem winner vice presidential debate democratic rival tim kaine last week republican strategist ron bonjean say plenty trump could learn pence stay offense vice-presidential debate bother respond kaine accusations look calm unflappable clear lesson avoid fall opponent trap bonjean say talk side want talk focus want talk about clinton hunker days get ready could knockout blow trump video surface clinton campaign officials say expect republican nominee come debate subdue first round also prepare case trump follow threat focus clinton sometimes trouble marriage former president bill clinton clinton already capitalize trump treatment women foreshadow might respond attack trump marriage speech fundraiser washington wednesday feel responsibility defend attack really do say think responsibility defend everybody else attack say draw cheer crowd clinton issue face wikileaks friday publish email clinton advisers appear contain excerpt pay speeches corporations clinton voice support open trade border say sometimes important public private position pressure trump likely intense second debate clinton