"Labour is part of my soul, and so is this town," he told constituents, insisting that his "love affair" with Blackburn will not end after the next general election.
Labour leader Ed Miliband said Straw will be "sorely missed" in the Commons, praising his service as foreign secretary in the aftermath of the Sept. 11, 2011, terrorist attacks in the United States, and his loyalty and support to the party.
Straw worked briefly in journalism and law before taking a seat in Parliament in 1979. He occupied a variety of shadow Cabinet roles and was appointed home secretary in 1997, pushing Blair's "tough on crime" approach.
After becoming foreign secretary in 2001, Straw staunchly backed Blair's decision join the U.S.-led invasion of Iraq, a decision that was unpopular with many Britons.
Straw later said it was one of the most difficult choices he had ever faced and that he recognized the invasion had made many people "very angry." His role in that chapter of British history has made him a frequent target of anti-war activists.
Straw also has been dogged by persistent questions over his role in the CIA's so-called extraordinary renditions programs and faced legal action over what role he may have played in authorizing the rendition of a Libyan military commander.
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