Original sentence: At the same time, Marr was often accused of left wing bias, mostly from the Murdoch press.In particular, by columnists Andrew Bolt, Janet Albrechtsen and Paddy McGuinness, who alleged that Marr - a frequent critic of their practices - was targeting them because of their political stances
Edited sentence: At the same time, Marr was often accused of bias, mostly from the Murdoch press.In particular, Marr was often targeted by right-wing columnists Andrew Bolt, Janet Albrechtsen and Paddy McGuinness, who alleged that Marr - a frequent critic of their practices - was targeting them because of their political stances