article_snippet: But Portsmouth South MP has now vowed to stand as an independent candidate, continuing a colourful political career, which has included an affair with a woman accused of being a Russian spy.
article_snippet: It pitches him against Lib Dem candidate Gerald Vernon-Jackson, who faces a challenge from the Tories and Ukip.
highlights_snippet: Portsmouth South MP vows to stand against Lib Dem candidate in city .
  