A group of leading Senate Republicans is requesting information from cable provider DirecTV surrounding its recent decision to drop conservative network Newsmax from its channel lineup.

In a letter dated Feb. 1 and shared exclusively with The Hill, GOP Sens. Ted Cruz (Texas), Lindsey Graham (S.C.), Mike Lee (Utah) and Tom Cotton (Ark.) wrote to the cable provider’s corporate leadership expressing that they are “deeply disturbed” by its decision to drop the network and alleged the episode “may be the latest example of big business suppressing politically disfavored speech at the behest of liberal Democrats.”