[10] As President of the British Antique Dealers' Association, she became the subject of media speculation during the run-up to the 2017 general election for using her friendship with Theresa May to influence the Conservative Party into dropping a 2015 manifesto pledge for the total ban of selling ivory in the United Kingdom.

In her speech she said of the incumbent Mayor Ken Livingstone that "you are the weakest link, goodbye", alluding to her supposed resemblance with the television presenter Anne Robinson.

[22] In 2007, she published a Centre for Policy Studies pamphlet entitled "The Cost of Ken" which itemised the Greater London Authority budget.

The Sunday Telegraph revealed in June 2015 that Borwick was "topping up her Parliamentary salary with tens of thousands of pounds in public money from two additional elected roles", in contrast to the practice of other MPs who, despite also acting as London councillors, had given up their allowances to avoid taking multiple salaries on the public purse.

[37] The London Evening Standard reported that the discrepancy between Borwick's views on this matter and those of her constituents put her at risk of losing the Kensington seat in the 2017 general election.

[38] Borwick was one of over 70 signatories to an open letter from Conservative Members of Parliament to the BBC in March 2017, criticising the broadcaster's coverage of Brexit and accusing it of being "unable to break out of pre-referendum pessimism" by ignoring "economic good news" since the referendum.

[39] The British press reported in the run-up to the election that Borwick, being acquainted with the incumbent Prime Minister Theresa May, was influential in the decision to remove from the Conservative manifesto the party's previous pledge of a total ban on ivory trading.

[42] On 31 May 2017, Borwick participated alongside rival parliamentary candidates at a local hustings in Notting Hill, at which, according to the London Evening Standard, she was repeatedly heckled and booed by constituents.

[43] Borwick did not attend the subsequent constituency hustings on 5 June 2017 in Earl's Court, an absence that was mocked by the Evening Standard.

[46][47] The Conservatives' loss of this once-safe seat surprised many and was widely reported in the British and international media as a consequence of Borwick's support of a hard Brexit.

[2] However, her bid to be re-stand for the seat was derailed in the summer of 2019 when executive members of the local Conservative party ruled her out of the contest.