in riga

Literally, “in line”.

in riga

1. (idiomatic) in strict obedience to authority; in line
   • 2020 September 30, Anna Lombardi, “Trump-Biden, primo dibattito infuocato: insulti e interruzioni a ripetizione su Covid, Corte Suprema ed economia [Trump-Biden, first heated debate: repeated insults and interruptions on Covid, Supreme Court and economy]”, in la Repubblica‎:

     E infatti pure loro si scontrano più volte: quando Wallace cerca di rimettere in riga il leader repubblicano.

     And in fact even they clashed several times: when Wallace tries to make the Republican leader fall in line.

• Typically preceded by mettere (“to put”), rimettere (“to put back”), tenere (“to keep”), and similar.

• Garini, argini, granii, ignari