Battle lines appear drawn for general election as Republican frontrunner says Democrat has nothing going for her except ‘the woman’s card’.
The respective front-runners scored vital victories and will go into future state battles with much confidence.
Texas senator Ted Cruz described his recent win as a "turning point" in the Republican presidential race.
Bernie Sanders is on a roll after the upset win in Michigan - but the odds on him winning are slim.
Vermont senator had trailed in polls by more than 20 points but opposition to free trade and growing African American support lead to victory.
Like Donal Trump, former American president Andrew Jackson was despised by many - yet this outsider managed to become US president.
Trump and Clinton win seven states and start to look toward general election even as Cruz and Sanders each claim victory in multiple states.
Donald Trump continued his march toward the GOP nomination while Hillary Clinton put in a strong showing against Bernie Sanders.
She may seem the most electable Democratic hopeful, but can voters be persuaded to trust her?
Republican Donald Trump and Democrat Bernie Sanders essentially cruised to victory in the second round of the US election primaries.
An informant told Hillary Clinton that Zuma secretly received money from Libya's Muammar Gaddafi and that he feared for his position as president.
Nobody wanted an alternative (and one known to run mediocre campaigns) to the Clinton juggernaut more than conservatives.
The Democratic frontrunner is no longer a shoo-in, leading to mounting pressure on Biden to run.
Presidential hopeful Bernie Sanders says there is no reason for the Democrats to give up on Republican strongholds.
A shift is taking place in the Democrats, which optimists hope will embrace grassroot Americans. Bernie Sanders is their candidate.
America needs to show it is no longer happy to squander the talent of anyone with ovaries.
Clinton's memoir shows she is fit to be president, but she's not giving anything away just yet.
Hillary Clinton's weeks-long book tour suggests the opening salvo of a 2016 presidential run.