She was elected to the Assembly in 2003 as a representative of her home constituency of Fermanagh/South Tyrone, but defected to the DUP the following year because of her opposition to the Belfast Agreement.
The ensuing scandal led to the collapse of the Northern Ireland Assembly in 2017 and a three-year hiatus until its restoration in early 2020, two months before the inquiry into RHI, which was sufficiently critical of ministers, special advisers and officials for Foster to apologise again for “my failings” in the implementation of the scheme.
Arlene Foster and Deputy First Minister Michelle O’Neill of Sinn Féin. Photograph: Kelvin Boyes/Northern Ireland Executive/AFP via Getty
She was used by the Torys then got her pay back from them