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WE:Business Development (Energy and Utilities)
Re: Central to the challenger’s platform was the argument that
[#permalink]
14 Oct 2017, 16:02
Explanation
The political challenger is apparently saying that the “incumbent,” or “current” politician made certain agreements during his first time in office, but didn’t follow through on them. The politician, in other words, “went back on,” or “failed to honor” these agreements: he reneged on them, or abrogated them.
Reneged on and abrogated are correct!