It used to be that Sirius and XM were two separate companies providing competing services. Unfortunately in 2008 the US DoJ allowed them to merge on the basis that FM & internet radio were sufficient competition.
Is the DOJ ever denying merger anymore though? European here so probably biased but I feel like US regulatory tools have taken a serious step back the last 15 / 20 years
The DOJ sued to stop the merger of AT&T and Time Warner (DOJ lost). The DOJ sued to stop the merger of T-Mobile and AT&T when they tried a few years back (AT&T backed down). It also sued to stop the merger of T-Mobile and Sprint (DOJ settled).
