The senselessness of having been elected by a tiny fluctuation (7)
I believe the answer is:
inanity
'the senselessness' is the definition.
('inanity' can be a synonym of 'senselessness')
'elected by a tiny fluctuation' is the wordplay.
'elected' becomes 'in' (in government).
'by' is a charade indicator (letters next to each other).
'fluctuation' is an anagram indicator.
'tiny' is an anagram of 'nity'.
'in'+'a'+'nity'='INANITY'
'of having been' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for inanity that I've seen before include "Folly" , "Foolishness" , "Silliness in a tiny way" , "Mindlessness" , "act of stupidity" .)