(Photo by Jim Cole/AP via NPR)

Donald Trump

The "Never Trump" movement has seen its momentum slow — at least a bit — as an increasing number of elected GOP officials have decided to meet with the Republican frontrunner Donald Trump.

A recent article in Slate compared the reaction to Trump to what was happening in the 1964 campaign of presidential nominee and longtime Arizona Sen. Barry Goldwater.

To put this into historical perspective and context, we spoke with historian Jack August, who is administrator for institutional advancement at the Arizona Capitol Museum, and political analyst Mike O’Neil.