Christine is the Liberal Democrat MP for Edinburgh West. She was first elected as the Member of Parliament for Edinburgh West in 2017 and has previously been the Liberal Democrat Spokesperson for Scotland and Women and Equalities. She is currently Vice Chair of the Women and Equalities Select Committee.

Earlier in her parliamentary career she was the Spokesperson for Culture, Media and Sport, as well as Treasury.

Before becoming a Member of Parliament, Christine was a broadcast journalist with the BBC, she taught journalism at the University of Strathclyde and worked as a Special Advisor in the Coalition Government.