Sanders and Trump tipped to win first primary but second place results might prove most critical
The US senator for Vermont has surpassed expectations so far in the presidential race
Abrasive billionaire's promise to make US 'great again' continues to resonate
Teenager from Iowa is currently running the most successful independent presidential campaign since 1996
Nazi tweet sparks outrage – but the billionaire presidential hopeful has never been shy of controversy
Female voters who value gender over policies have been criticised for 'setting back feminism a hundred years'
Merkel still reigns supreme, but Hillary Clinton is 'just a breath and a ballot away' from the top spot
Jeb Bush v Hillary Clinton in 2016? Or would another Democrat, Elizabeth Warren, be a bolder choice?
Republican party overwhelms Democrats in a sweeping election victory across the United States
As Clinton pledges support for Israel, Generation Millennial more likely to sympathise with Hamas
Hillary Clinton distances herself from Obama, saying she favoured intervention in Syria
Former president mocks 'Walking Dead' claims
Might wealthy Republicans persuade Jeb Bush to stand against Hillary Clinton? It's not an April fool
Murder, drug trafficking, lesbianism, an undisclosed brain tumour – can any of this really stick?
As Republicans dig for dirt on Hillary Clinton, have they got the wrong blonde in their sights?
New Jersey Governor with 'regular guy' appeal looks set to seek Republican nomination for 2016 race
Woman who swapped hundreds of messages with 'Carlos Danger' is now 'disgusted' by US politician
President Obama hands out even more plum jobs to his supporters than did Bush or Clinton
Should we feel sorry for Huma Abedin, wife of sex-obsessed Anthony Weiner? Or is ambition getting the better of her?