Table 1. Conditions in studies 1 and 2.

Condition	Conversation prompt	Informed partner was outpartisan?	Included in study 1?	Included in study 2?
Placebo	Discuss perfect day (Fast Friends paradigm)	–	✓	✓
Perfect Day	Discuss perfect day (Fast Friends paradigm)	✓	✓	✓
Inparty Strengths	Discuss diverging partisan preferences (why like inparty)	✓	–	✓
Outparty Flaws	Discuss diverging partisan preferences (why do not like outparty)	✓	–	✓

Notes: Participants were always matched with outpartisans but were only informed that their conversation partner was an outpartisan in the three treatment conditions (all conditions but Placebo).