- Amid rising tensions between the two campaigns, Hillary Clinton and Bernie Sanders will do battle in a one on one debate on Thursday evening.
The programme will be broadcast by MSNBC and moderated by Chuck Todd and Rachel Maddow.
Among Wednesday's headlines in the race for the White House
- Donald Trump, who finished second in Iowa, has accused Ted Cruz of stealing the caucus by putting out a press release claiming that Ben Carson was exiting the race causing his supporters to vote for Senator Cruz - Trump said on Twitter that a new election should be held or Cruz's results nullified.
The Cruz campaign apologised to Dr. Carson on Tuesday and said they should have clarified that Carson was just returning home for a fresh set of clothes, not suspending his campaign.
Rand Paul, the Republican senator from Kentucky, suspended his campaign.
Hillary Clinton took issue with her Democratic opponent Bernie Sanders for questioning whether the former secretary of state was truly a progressive.
Sanders v Clinton
Cruz beats Trump, Clinton and Sanders in virtual tie
How the candidates reacted
Other headlines from Iowa
Democratic candidate Martin O'Malley, the former governor of Maryland, suspended his campaign.
Mike Huckabee, the former Arkansas governor, withdrew from the Republican race - Huckabee won the 2008 GOP Iowa caucus but had just 1.8% of the vote this time around.
Jeb Bush, the one time favourite for the Republican nomination, finished 6th with 2.8% and just 5,235 votes.
Ben Carson's campaign issued a statement denying reports that he had suspended his campaign - they said Dr. Carson, who finished fourth, was in fact just going home to Maryland to get a fresh set of clothes. +
Coming Up: Coming Up: Democratic town hall debate (Wednesday), Democratic debate (Thursday), Republican debate (Saturday), New Hampshire primary (February 9th).
Among the main headlines this weekend:
The New York Times endorsed Hillary Clinton for the Democratic presidential nomination, saying the former secretary of state was one of the 'most broadly and deeply' qualified candidates for president in 'modern history'.
The newspaper endorsed John Kasich, the governor of Ohio, for the Republican nomination claiming he was the only 'credible choice' in a field led by 'extremist' candidates.
MSNBC said the Democratic National Committee had sanctioned a debate on February 4th, which the broadcaster had previously announced its intention to hold before getting agreement from the presidential candidates.
Republican presidential frontrunner Donald Trump delivered on his promise to boycott Fox News' pre-Iowa debate on Thursday night.
Fox News said its chairman, Roger Ailes, spoke to the controversial billionaire businessman three times on Thursday and refused Mr. Trump's request for Fox to donate $5 million to charities of his choosing. +
Mr. Trump held a rally for war veterans as two of his main rivals for the nomination, Senator's Ted Cruz and Macro Rubio dominated a debate that touched on issues including immigration, the Iran nuclear deal and the absence of Trump.
The Fox News debate had an average of 12.5 million viewers - the first GOP debate, staged by Fox in August, had 25 million. +