Frank Bruni, a contributing Opinion writer, hosted a written online conversation with Mike Murphy, a co-director of the Center for the Political Future at the University of Southern California, a former Republican strategist for John McCain and others and a host of the podcast “Hacks on Tap” and Kristen Soltis Anderson, a Republican pollster and a moderator of the Times Opinion focus group series, to discuss their expectations for the Iowa caucus. They also banter about the road ahead for the G.O.P. primary and what the general election might look like after the primary.

Frank Bruni: Mike, Kristen, happy Iowa caucuses. I’m sitting here at my kitchen table in a parka and earmuffs, in honor of the freezing temperatures that caucusgoers are expected to brave. And I thank you for joining me.

Have any of the developments of recent days (Donald Trump’s appearance in two different courtrooms, Chris Christie’s exit from the race, the Nikki Haley-Ron DeSantis debate, some other twist) potentially altered the trajectory of the race or set up caucus results that might surprise us?

Kristen Soltis Anderson: I doubt that the events of the last few days have done much. This is still Trump’s caucus to lose.