Having watched a fair bit of RT, along with the BBC, CBSN, DW, et.al, during the US campaign period, I would not say they were for Trump. They definitely weren't above slamming HRC; but if anything, they were more for Bernie if anyone.  With commentators like Jessie Ventura and his son, they were nearly daily speaking for Sanders and his supporters and this was up to election day, negating to some degree any idea that being for Bernie was a blow to HRC.