Donald Trump announces 2024 run for president | First Thing

Twice-impeached former president makes expected announcement despite shaky midterms and surge from rival Ron DeSantis. Plus, the latest from Cop27

Don't already get First Thing in your inbox? Sign up here

Good morning.

Donald Trump has formally announced his candidacy for the Republican presidential nomination in 2024, likely sparking another period of tumult in US politics and especially his own political party.

Will Trump's legal battles stand in the way? Federal and state authorities are investigating his personal, political and financial conduct, and that of his business empire. How any indictment would affect Trump's run remains unclear - he is experienced in using delaying actions in the courts and in using political or investigatory moves against him as fuel to fire up his base.

Just a few months ago it was received wisdom that the Republican nomination was his for the taking. What happened? The star of the former president was already waning among the party faithful before the midterms, as Cas Mudde explores.

What might have happened? Turkey's president, Recep Tayyip Erdoan, said he took Russian denials of involvement in the attack seriously, adding it was likely to be a technical error.