WASHINGTON — President Joe Biden sat Friday for his first television interview since his poor debate performance, a high-stakes moment of seeking to reassure allies and voters.

The 22-minute prime-time special with ABC was aired in full — “no cuts, no edits, we have not touched it,” interviewer George Stephanopoulos said.

It’s far from clear Biden succeeded at righting the ship. While he displayed more coherence than at the debate, his interview was marked by a mix of denial (of surveys…