Nikki Haley sharpens attacks on Trump – but are they sharp enough?

Haley, who finished third in Iowa, ramps up criticism of Republican rival but some say she can - and should - go further

In the final days before New Hampshire's first-in-the-nation primary, Nikki Haley is sharpening her attacks on Donald Trump as the former South Carolina governor courts the state's famously discerning independent voters.

After coming in third in the Iowa caucuses, Haley's is casting her candidacy as a better choice" for a nation barreling towards a possible rematch between Trump, 77 and Joe Biden, 81.