2001 In the run-up to the
2001 UK general election McGimpsey challenged sitting MP
Martin Smyth for the Ulster Unionist nomination for Belfast South and gained 43% of the valid poll. In light of anti-agreement Smyth's selection the then anti-agreement
Democratic Unionist Party (DUP) did not stand a candidate, but the pro-agreement
Progressive Unionist Party was prompted to put one up. McGimpsey, however endorsed Smyth.
2005 In 2005 the sitting UUP MP Martin Smyth retired and McGimpsey was selected as the official UUP candidate for the
south Belfast constituency in the
2005 general election following a close selection campaign against an unknown figure, Christopher Montgomery. The
Democratic Unionist Party, for the first time in over twenty years, stood a candidate in the form of former policeman
Jimmy Spratt. In the battle between the two Unionist parties, both Smyth and former Ulster Unionist leader
James Molyneaux appeared in a photograph with Jimmy Spratt which was included in his election literature. While Smyth subsequently claimed that this was "just a photo" that did not constitute an endorsement, "two Ulster Unionists had let it be known in the most public fashion that they preferred an unknown DUP candidate to the man selected by their own party". When the results were declared the poll was split three ways, with
Social Democratic and Labour Party politician and part-time GP,
Alasdair McDonnell winning the seat. Such an eventuality had been anticipated before the election in discussions between the UUP and DUP about an election pact involving
Fermanagh and South Tyrone and Belfast South amongst other constituencies.
David Burnside is known to have favoured the pact benefiting
Tom Elliott, as he felt that Elliott could unite Unionists in Fermanagh and South Tyrone more readily than McGimpsey could in South Belfast.
2010 In December 2009, McGimpsey ruled himself out from standing in South Belfast in the 2010 General Election, saying that he felt he would best serve his constituents by continuing to work as Minister for Health. ==2007 Assembly election==