laconia n.h. marco rubio finish third monday iowa caucus republican white house rival attack though victor wednesday u.s. senator florida pepper speech humble caveats seem design deflect hit 2016 candidates look ahead tuesday new hampshire primary new jersey governor chris christie call rubio boy bubble suggest give speech matter go senator lindsey graham south carolina campaign former florida governor jeb bush say rubio could win general election position abortion immigration bush ohio governor john kasich say country need experience commander chief appear jab rubio first-term senator run-up iowa caucus republicans donald trump ted cruz two anti-establishment candidates dominate poll state rubio lag well behind monday rack surprisingly strong third-place finish garner support 23 percent republican caucus goers trump 24 percent second-place finish cruz senator texas iowa 28 percent many pundits predict rubio would struggle get much 15 percent 20 percent state rubio strike triumphant tone post-caucus speech moment say would never happen say add people iowa send clear message wednesday though give cautious outlook prospect new hampshire beyond rubio say leave fate republican u.s. presidential primary contest god hand add hop children would proud matter turn out want well possibly new hampshire rubio tell reporters emerge lead establishment candidate compete trump cruz rubio face high stake new hampshire elevate stature race give rival add incentive attack voters state seem warm grace freije 63 bow new hampshire say decide support rubio gravitate early toward christie steve mcmahon 65 say divisive person mcmahon say guy get best shoot win report emily flitter edit caren bohan jonathan oatis sap sponsor content independently create reuters editorial staff fund part sap otherwise role coverage stature rise rubio become ripe target rival