President Joe Biden sat for a 30-minute interview with ABC News’ George Stephanopoulos, during which he took responsibility for his failure to land at the debate in Atlanta the previous week, insisted that he had the health and stamina to carry on the campaign and defeat former President Donald Trump a second time, and was skeptical of the polling currently showing him down in the race. He added as well that only God could send him a sign to end his campaign. Commenters across social media and on all sides of the political spectrum had varied reactions to the interview. Republican lawmakers, n…