Hillary Clinton's top strategist on Wednesday suggested that Bernie Sanders' path to the Democratic nomination is virtually non-existent and will continue to shrink as the Democratic front-runner picks up delegates in the weeks to come.

Remarking that Sanders faces a "pretty daunting" deficit after the campaign's "resounding victory" in the New York primary, chief Clinton pollster and strategist Joel Benenson said the former secretary of state's lead grew "even more insurmountable."

Benenson also rejected the notion that Sanders has any path to catch Clinton, noting that the campaign has continued to add to its pledged delegate lead, "and the real estate is disappearing beneath his feet."

"Next Tuesday, these races are going to be closely contested, but more than 400 delegates come off the table," he continued. "He just doesn’t have enough left to make a credible case that he can do what he’s gotta do to get within striking distance of us even.”