Four days after the crucial multi-state primaries to elect the party nominees for US president, known as Super Tuesday, another set of states are to hold contests on Saturday.

Voters will cast their ballots in the so-called Super Saturday in the states of Kansas, Kentucky, Louisiana, Nebraska and Maine for four Republican candidates.

These states may be small in population, but they mark an important day in a race where every delegate will count in July.

There are 178 delegates at stake in the Republican race, bringing the total delegates allocated to more than 900. On the Democratic side, 156 delegates will be at stake.

The latest elections come as Republican presidential candidate Ben Carson officially ended his campaign on Friday.

Notorious for his anti-Islam remarks, Carson briefly led the Republican presidential race but stumbled after months of “staff infighting and strategy shifts,”

In the Super Tuesday primary elections, Republican presidential frontrunner Donald Trump won 7 out of the 11 states that voted. On the Democratic side, Hillary Clinton also won in 7 states.

US Senator and Democratic rival Bernie Sanders won in Colorado, Minnesota, Oklahoma, and his home state of Vermont.

A CNN/ORC poll released this week found that both Clinton and Sanders would easily defeat Trump if the November 8 election were held now.

Sanders, a self-styled democratic socialist, has vowed to press on with his well-funded campaign that has made shrinking the income gap between rich and poor and providing universal healthcare a central issue of the Democratic contest.

Sanders has also been critical of US foreign policy and was an early opponent of the wars in Iraq and Afghanistan.