Biden's latest job approval rating plunged six percentage points to 50%, a new low, down from 56% in June. The latest survey consisted of 1,007 US adults between July 6-21. "Before this month, his ratings had not shown meaningful variation during his time in office, and the current figure marks the lowest measured for him to date," Gallup said.

The lower rating comes as vaccination rates have hit a wall, the spread of the COVID-19 Delta variant, and concerns about rapid inflation, exploding wealth inequality, and millions of people unemployed. 

The poll found 45% of respondents disapprove of Biden's performance, and 5% had no opinion. 

Gallup expands more on why the president's approval ratings are in decline:

It comes at a time when U.S. progress in fighting the coronavirus has stalled, with vaccination rates slowing and case levels now rising. The economic recovery continues, with unemployment declining and stock market values near record highs. But consumers are paying higher prices for gas and other goods. Biden has also struggled to deliver on his promise of greater bipartisanship, although negotiations on an infrastructure bill continue in the Senate.