Washington: Democratic presidential candidate Bernie Sanders has signalled he is open to ending his presidential run after another round of landslide losses to Joe Biden, and as new signs emerge of communication between the two camps.

Sanders campaign officials said the senator from Vermont planned to leave Washington and return home, where he and his wife, Jane, would talk to supporters and determine the future of his presidential run. The campaign also suspended its Facebook ads and, uncharacteristically, made no request for donations in an email to backers updating them on the situation.

Democratic presidential candidate Bernie Sanders speaks in a video on his website. Credit:Berniesanders.com

Biden deputy campaign manager Kate Bedingfield revealed that aides to the two candidates had been in touch regularly to discuss the public health crisis that had gripped the country, disclosing talks that could form the basis of a broader agreement on policies and might make Sanders more comfortable leaving the race.

The two campaigns "have been in regular contact at a senior level" since last week to discuss how the coronavirus pandemic was affecting the campaigns, Bedingfield said in a statement to The Washington Post.