John McCainJohn Sidney McCainCortez Masto poised to become DSCC chair Implementation matters: Making certain the VA Mission Act will work for veterans Students protesting Shapiro chant ‘John McCain’s dead’ MORE's call to reschedule Friday's presidential debate illustrates how easy it would be to include third party candidates on short notice, Independent candidate Ralph Nader and Libertarian Party candidate Bob Barr said in a joint statement Wednesday afternoon.

"The fact that a candidate can call for changing the date of the debate only two days before it is scheduled indicates how easy it would be for the candidates to also call for the inclusion of the leading third party and independent candidates, which would bring fresh ideas to the table on how our country can truly tackle this heavy challenge," Nader and Barr said.

Friday's debate was left in limbo after McCain's statement, with Barack ObamaBarack Hussein ObamaO'Rourke receives invite to visit Iowa from Democratic Party in Des Moines Overnight Defense — Presented by Raytheon — Mattis defends border deployment during visit to troops | Bolton aide exits WH after clash with first lady | House blocks Yemen war resolution | Report warns of erosion in US military superiority Mattis defends border deployment, likens it to 1916 effort against Pancho Villa MORE saying in a late afternoon press conference that he would like to see the debate go forward. It was unclear how the candidates' stances would be resolved.

The University of Mississippi, which is hosting the debate, said it was planning to go forward with debate preparations. " At present, the University has received no notification of any change in the timing or venue of the debate," the university said. "We have been notified by the Commission on Presidential Debates that we are proceeding as scheduled."

-Michael O'Brien