President Barack Obama has widened his lead over Mitt Romney and Rick Santorum, his potential Republican rivals in the November presidential election, to double digits in a new national poll.

In the

Mitt Romney scored a resounding win in Sunday's primary race in Puerto Rico to pick a Republican nominee to take on President Barack Obama in November's election.

With the final tally in late Sunday,

In his second victory of the night on Tuesday, former Pennsylvania senator Rick Santorum was seen to have squeaked a win in Mississippi's tight Republican presidential primary.

US television networks

Rick Santorum, the Republican presidential hopeful, has won the Kansas caucuses, while the front runner Mitt Romney was declared winner in Wyoming ahead of the next week's crucial primaries in the Sou

Mitt Romney and Rick Santorum, with three wins each in their kitty, were running almost neck to neck in Ohio on 'Super Tuesday' wherein 10 States went into Republican presidential primary.

Romn

Mitt Romney on Wednesday appeared to have maintained his front runner status in the Republican presidential primary as he was projected to win in four States and had gained a slight edge in the key

Republican White House hopeful Mitt Romney won the key Ohio vote on Super Tuesday, snatching victory from rival Rick Santorum in a nail-biting finish, US media projected.

A win in Ohio, a key battleg

White House hopeful Mitt Romney has won Tuesday's Republican Party primary in Arizona as expected, according to projections by US media.

A victory in the southwestern US state boosts Romney's frontru

Mitt Romney pulled back in front in the topsy-turvy race for the Republican presidential nomination on Tuesday with victories in Arizona and Michigan, gaining valuable momentum ahead of next week's pi

Republican presidential candidate Mitt Romney said on Tuesday that President Barack Obama's administration has 'fought against religion' and sought to substitute a 'secular' agenda for one grounded in