**Rubio sees surge of support after strong showing in Iowa
US presidential hopeful Marco Rubio has seen a surge in high-profile endorsements, after a surprisingly strong finish in the Iowa caucuses.
The Florida Senator’s campaign said that it had also received $2m (£1.37m) dollars in funding after the vote.**
Mr Rubio is currently polling in third place in averages of national polls.
Amid the endorsements, rival candidates, notably New Jersey Governor Chris Christie, have stepped up attacks on the first term senator.
With the rapid series of endorsements, Mr Rubio is now leading the Republican pack of candidates in number of endorsements, having surpassed Jeb Bush, according to statistics website FiveThirtyEight and the campaign.
Thus far the Republican race has been dominated by outsider candidates like businessman Donald Trump and conservative firebrand Senator Ted Cruz.
However, the next primary in more moderate New Hampshire will be a critical test for the “establishment” candidates - a group that includes Mr Rubio, Mr Christie, Mr Bush and John Kasich.
The four are seen more viable candidates in the general election.
Among those endorsing Mr Rubio is US Senator Tim Scott, a black Republican from South Carolina, who is very popular in the conservative state.
His support could prove crucial for his fellow senator who is hoping to win big in the Palmetto State when its primary is held on 20 February.
Also throwing his support behind Mr Rubio in recent days was former presidential candidate Rick Santorum.
Mr Santorum who has strong support among evangelicals and is known for his conservative social policy agenda recently dropped out of the race.
The former Pennsylvania senators endorsement could help broaden Mr Rubio’s base of supporters and prove useful in elections in socially conservative states.
Among those endorsing Mr Rubio since the Iowa caucuses:
US Senator and Former Presidential Candidate Rick Santorum
US Senator Tim Scott, of South Carolina
US Senator Pat Toomey
Arkansas Lieutenant Governor Tim Griffin
Congressman Steve Womack
Congressman Rick Crawford
Congressman Lynn Westmoreland
Congressman Glenn Thompson
Co-founder of the House Freedom Caucus and Congressman Matt Salmon
New Hampshire GOP Activist Susan Duprey