But it's incomprehensible to me how anybody could write a survey article on how western (?) populism fared in 2018 without mentioning the shock elections in Italy or Brazil.
1) Populism is on the rise, so it must win in *every* election!
2) Oh, but they didn't win in this particular election, so the wave has crested.
The aggregate data shows continued uneven growth.
1) Populists keep gaining in strength where (recently) in opposition.
2) Once populists take power, resistance to them will take shape.
If you want to tell an optimistic story about 2018, it's all about 2). See U.S., Poland, India.