Bryan Cranston Imagines LBJ's Reaction to Trump: 'What the Hell Is Goin' On?'

"He'd say somethin' like, What the hell is goin' on in Washington?'"

Asked if there are parallels between America’s political landscape now and that in the film, Cranston looked straight to 2016.

“This presidential election is unlike anything we've ever seen. And talk about power: We have a power broker as the presumptive Republican presidential candidate who is devoid of substance, so he has power without substance,” he said, referencing Trump.

“I will do everything in my power to make sure that he's not the president,” Cranston added.

For more of the interview with Bryan Cranston and more on HBO’s “All The Way” -- including Cranston showing ABC News’ Rick Klein what the “Johnson Treatment” really looked and felt like -- watch the video above.