A top pollster suggested incumbent Joe Biden drop out of the presidential race due to his approval ratings being at an “all-time low,” RadarOnline.com has learned. Despite presumptive Republican nominee Donald Trump being convicted of 34 felonies — while facing three other criminal trials — he remains a threatening opponent as Biden’s approval rating drops over dissatisfaction on several key voting issues. “Biden just hit a new all-time low in approval (37.4%),” Silver, who is a data analyst and founder of FiveThirtyEight, wrote in an X post on June 10. “Dropping out would be a big risk. But t…