Bernie Sanders said on Tuesday that his primary bid against Hillary Clinton was far from over, pointing to his victory in Indiana and strength in upcoming races as a sign of his durability in the presidential campaign.

"I know that the Clinton campaign thinks this campaign is over. They're wrong," Sanders said in a telephone interview with The Associated Press from New Albany, Indiana. "Maybe it's over for the insiders and the party establishment but the voters today in Indiana had a different idea."

Sanders spoke to the AP after he defeated Clinton in Indiana's primary, predicting that he would achieve "more victories in the weeks to come" in West Virginia, Kentucky, Oregon and California. The Vermont senator acknowledged that he faced an "uphill climb" to the Democratic nomination but said he was "in this campaign to win and we are going to fight until the last vote is cast".