. >> he's willing to make dweelz democracies to try to force through amnesty. >>reporter: ted cruz supporters hoping he can push ahead. >>reporter: hillary clinton going door do door, too. >> i need your help on tuesday. >>reporter: nighting for momentum as she leaves bernie sanders by 2 points and is behind double digits in the granite state. >> i am confident we're going to win. >>reporter: a lot of confidence from candidates on both sides of course. republicans hopefully that tonight's debate will translate >>> should be an interesting evening. thank you marci. you can watch the republican debate tonight right here on channel 7 and on the watch abc app. it begins at 8:00. and our political reporter heading to new hampshire. you can watch his reports on the primary beginning monday on eye witness news. >>> new at 6:00, an investigation under way in westchester county after radioactive water leaked into groundwater at the indian point nuclear facility in buchanan. alarming levels of radioactivity were found in three wells yesterday. the level in one well incre

what may delay them if they don't do well here in iowa is they will try to make dweelz whoever did do well to burnish their credentialaise little by giving an endorsement. >> pelley: john dickerson, thanks. now, we are thrill to welcome who has covered every presidential election since 1968, our very own bob schieffer. >> reporter: thank you, scott. i have to say, primary campaigns are like weddings, they bring out the best and worst in families. if this campaign were a wedding, we would be half-way through theun weird uncle's long, unfunny and embarrassing rehearsal dinner toast. the difference here is all the participants in this campaign appear to be stone-cold sober. that may be the scariest part of all. people are madder than ever, the partisan divide is wider than ever, and we're seeing a campaign reflecting the changes in our culture brought on by social media. nasty, illogical, ill-tempered, strong on attitude, light on issues. too many times people have arrived at this wedding with not just opinions, but their own set of facts. the campaign narrative has gone from inane to pr