Republican Scott Walker quits presidential race

"I am being called to lead by helping to clear the field in this race," said Walker, to the mirth of many, the lament of few, and the disinterest of all.

Once a considered a front-runner, Wisconsin Governor Scott Walker has decided to end his campaign for US president amid dwindling contributions and plummeting poll numbers.

Unlike some rivals, the Republican had a large and costly campaign operation." A recent CNN poll shows he had support of less than one half of one percent of Republican primary voters.