I don't understand how Mordaunt (and Hunt) are being touted as left-leaning or progressive choices within the Conservative party.
Mordaunt was (is?) a Brexit headbanger and xenophobe who lied during the Brexit campaign about "a million Turks" coming to the UK (as Turkey was, according to her, just about to join the EU, despite coming nowhere near meeting the criteria over decades as a candidate.) When challenged, she insisted that EU countries do not have an accession veto (they did, and do). Surely after the trouble of getting Johnson out Conservative MPs and members don't immediately want another blatant liar and Pound Shop Farrage anti-EU hardliner?
Even stranger to paint her as a unity candidate. Mordaunt (after Hunt) would be a gift to Scottish separatists, who are already lobbying for a general election to use as a mandate for independence. (We're past the risk of Johnson calling one to hang on, but it's still possible a new leader/PM would call one to establish legitimacy). The SNP line now is that the Conservatives AND Labour are committed Brexiteers / EUrohobes and therefore can't represent Scotland. Mordaunt as PM defending the next election is in some ways even better than Johnson, as she looks like she actually believes her paranoid nonsense.