Davidson previously worked as a Community Service Manager and for Janey Buchan when she was a Member of the European Parliament.

He was a member of the Public Accounts Select committee and has lobbied to support the Scottish shipbuilding industry.

The choice of language resulted in the Labour Party distancing itself from Davidson's comments, saying the use of the word "neo-fascist" was unacceptable, even in the heat of debate,[3] and Angus Robertson to call on him to resign as chair of the Scottish Affairs Select Committee.

[4] On 25 October 2011 it was alleged that Davidson had threatened to inflict "a doing" upon fellow committee member Eilidh Whiteford.

[8] A member of the SNP politician Joan McAlpine's staff, Gail Lythgoe, then married to future First Minister Humza Yousaf, was found to have emailed a women's equality group, supporting Whiteford and alleging that Davidson has a history of bullying women and called on them to demonstrate against him whilst asking them not to reveal SNP involvement in its instigation.

[11][12] In April 2017, Davidson announced his intention to stand in the 2017 general election in the Berwickshire, Roxburgh and Selkirk seat.

In October 2019, following the announcement of a December general election, he was reselected as Labour's candidate, but failed to win the seat, losing his deposit.