Is Joe Biden the New Jeb Bush?

Joe Biden, who had been polling as high as 38% in mid June, is losing support. The elder statesman, who occupies the ideological center of his party, is now polling at 23% according to the latest Economist/YouGov poll. While he still leads, Biden has been steadily leaking support for over a month now.

A disappointing debate performance spurred a number of his political adversaries to take aim at his