When Democrats held their 2020 convention, they made a point of featuring some conservative Republicans who opposed then-President Donald Trump’s reelection campaign — including former Ohio governor John Kasich. Now, four years later at their 2024 convention, Democrats’ lineup of Republican speakers, according to CNN, includes former Rep. Adam Kinzinger (R-Illinois), Olivia Troye (a former national security aide to ex-Vice President Mike Pence), former Georgia Lt. Gov. Geoff Duncan, and Mesa, Arizona Mayor John Giles. And according to NBC News, Stephanie Grisham — former press secretary to the…