Support for President Biden slipped below 50 percent, according to a new poll released Sunday, which found he is underwater with Americans over his chaotic handling of the evacuation of US citizens from Afghanistan and rising COVID cases. The 49 percent job-approval rating and 48 percent disapproval rating in the NBC News poll are a drastic drop from the 53 percent approval rating and 39 percent disapproval rating he received in the survey in April. “The promise of April has led to the peril of August,” said Democratic pollster Jeff Horwitt of Hart Research Associates, who conducted the poll with Republican pollster Bill McInturff of Public Opinion Strategies. Separately, according to the survey, 60 percent of the respondents disapprove of Biden’s handling of Afghanistan, while 25 percent approve. On COVID, 53 percent approve and 44 percent disapprove. But that’s a drop from April when 69 percent approved and 27 percent disapproved of his response to the coronavirus. The NBC News survey tracks recent polls that found Biden’s approval numbers lagging.