A British man who spent two decades on death row in the US was sent back to prison yesterday after threatening a judge involved in his original case.

A man released from prison four years ago after spending two decades on Ohio's death row will learn today whether he will be going go back to prison.

What to do

A skin-like plastic that "bleeds" when cut or scratched and then heals has been developed by scientists.

Rick Santorum won the Louisiana Republican presidential primary this weekend, beating front-runner Mitt Romney in the race to challenge President Barack Obama.

After a round of fundraising in New York, Mitt Romney was yesterday pouring money into television advertising in Illinois, whose primary on Tuesday he cannot afford to lose as he struggles to fend off Rick Santorum, his main conservative rival for the Republican presidential nomination.

Newt Gingrich was yesterday resisting growing demands to drop out of the Republican presidential race and allow his surging fellow conservative Rick Santorum an unimpeded shot at wresting the nomination from the faltering frontrunner, Mitt Romney.

Rick Santorum scored an upset double primary triumph in the deep south last night, guaranteeing that the Republican presidential race will drag on for weeks if not months yet. His victories in Alabama and Mississippi deliver a fresh jolt to the limping front runner Mitt Romney, and raise pressure on Newt Gingrich, his rival for the conservative vote, to drop out and thus set up a one-on-one Santorum-Romney battle for the Republican nomination to face president Obama in the autumn.

The main Republican presidential contenders were last night locked in tight three-way races in primaries in Alabama and Mississippi, where defeat in either could doom the candidacy of the former Speaker Newt Gingrich, setting up a one-on-one contest between front runner Mitt Romney and social conservative Rick Santorum.

In one of the closest fought Republican primaries to date, the polls can't split the main candidates

Rick Santorum has overwhelmingly won the Kansas Republican presidential caucuses, hoping to blunt front-runner Mitt Romney's momentum in the grinding campaign for the nomination to oppose US President Barack Obama in the November election.

Rick Santorum overwhelmingly won the Kansas presidential caucuses, hoping to blunt front-runner Mitt Romney's momentum in the grinding campaign for the nomination to oppose President Barack Obama in the November election.

Juliannne Moore is cast as Alaska's presidential hopeful in a recreation of 2008 election race

The race for the Republican nomination could be on the cusp of a shake-up with aides to Newt Gingrich whispering for the first time that he needs to win in two southern states voting next week or face leaving the field.