President Trump's envoy for Venezuela says he's "absolutely" confident Nicolás Maduro will fall by year's end, despite Maduro's success thus far in clinging to power.
Flashback: It has now been 6 months since Juan Guaidó declared himself Venezuela's legitimate president. The Trump administration demanded at the time that Maduro leave immediately, or else. He didn't. An attempt to topple him in April failed. Rumblings of potential U.S. military intervention haven't come to fruition.