Jayne Thompson died in May but was identified as a trans woman just this week. The officer has said he was defending himself.
Another Colorado politician had said stay-at-home orders were "Gestapo-like," a reference to Adolf Hitler's secret police.
After the president said he is "building a wall in Colorado," the nation's first gay governor schooled him in "basic geography."
The Colorado minister reportedly tried to shut the presentation down.
Baer, who helped craft Hillary Clinton's famed gay rights speech, aimed to be the first out gay man in the U.S. Senate, but he says Hickenlooper has the best chance of winning.
A Rockies employee named Karen told two fans not to kiss on their anniversary because Coors Field is a "family park."