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Welcome back to "hardball." after a big win for mitt romney in nevada, newt gingrich took to the stage to announce he's in the fight for the long haul. all the way to the convention. he also used the opportunity to knock his chief rival. let's watch. >> i am a candidate for president of the united states. i will be a candidate for united states. we will go to tampa. i also believe that the vast majority of republicans across the country are going to want an alternative to a massachusetts moderate who has been pro-abortion, pro-gun control, pro-tax increase and ranks third from the bottom in cr...

And most troubling, israeli leaders continuing to hint that military action by them is coming against iran. could that be an october surprise? the chief washington correspondent for "the new york times" joins us. david, let's go through the relatively easy. syria, why are we worried about so much? >> this has been a huge humanitarian disaster. when you think that up until january, the estimates were 5,000 killed by the syrian regime. they have lost count now. >> but from the beginning, we wanted to topple this guy, right? >> i think there was a strong sense during the end of the bush administr...

>> all that matters now is what's ahead. how do we come from behind? how do we come together? and how do we win? detroit is showing us it can be done. and what's true about them is true about all of us. this country can't be knocked out in one punch. we get back up and when we do, the world is going to hear the roar of our engines. yeah, it's halftime, america. and our second half is about to begin. >> i like that guy. "national journal" headline summed up one take on the ad. clint eastwood makes obama's day. republican strategist karl rove says he was offended by the ad. obama's strategist pr...

Nuclear reactor that one assumes was for a nuclear weapons project. but as soon as the arab spring came, he showed his true stripes. we're not in the land of lousy options. we're in the land of no options. without a resolution or military option, there's little the united states or others can do to stop what's happening. >> why did susan rice get so emotional today? i was watching her over the weekend. she was calling it despicable. why is she getting so enraged? i think it's been fabulous. taking on the u.n. guys. she knows they are playing games up there. >> i think it's precisely as david s...

>> he's the cover of the new yorker. it has the picture of you watching the big game on tv. there you are sitting there. on the screen, it's not the patriots and the giants, it's mitt romney and newt gingrich. look at the smile on your face there. is art imitating life here? >> i've been through the primaries. they are tough. i think ultimately, this will be forgotten by the time they make a decision by the time they decide the nominee. the american people will decide on my platform and where you want to take the country and where the republican does. >> i think that smile of his is worth five...