Complex sentence: In 1935, he came to Britain and worked for the News Chronicle, Daily Mirror and Evening Standard, maintaining a fiercely independent stance whatever the political hue of his employer and building a reputation as an incisive commentator on political events.
Split into simpler sentences: In 1935, he came to the United Kingdom, and worked for the "News Chronicle," Daily Mirror and "Evening Standard". He maintained a fiercely independent stance, whatever the political hue of his employer, and built a reputation as an incisive commentator on political events.