This chapter focuses on trends in reporting over time. It examines the presence of populist key messages in European newspapers coverage of immigration and commentaries on current political events, at two points in time, spring 2016 and spring 2017. The chapter explores the similarities and differences in the populist content of newspapers between the two periods and identifies a set of extra-media and intra-media explanatory factors contributing to the understanding of the emerging differences in a year-to-year comparison. The findings show that the presence of populism in news and commentaries in some countries is loosely related to actual migration dynamics (see Germany and Greece), whereas in other countries it seems to follow more intensive political debates, although actual immigration is less dramatic (Bulgaria, Poland). There are fewer indications than expected that the populist tendencies in news and commentaries are a reaction to the intensity with which the population views immigration as an important national issue or is dissatisfied with decisions by political elites. Finally, there are strong indications of the great importance of intra-media factors in explaining populism in news and commentary.