Mike Pence kicked off his presidential campaign on Wednesday from Iowa, an early-voting state Trump won in 2016 and 2020

Former Vice President Mike Pence formally joined the 2024 Republican presidential nomination race Wednesday with a bid that will test whether GOP voters have an appetite for a traditional conservative who has been critical of former President Donald Trump.

Donald Trump's two-time running mate offers his most forceful repudiation of his ex-boss to date.

Former US vice-president Mike Pence has offered his most forceful repudiation of Donald Trump to date during a speech launching his 2024 campaign. The Republican accused Mr Trump of being unfaithful to the US constitution and of abandoning conservative values.

Pence hit Trump over federal spending and entitlement reform, Vladimir Putin, and, most especially, Trump's actions prior to the Jan. 6 insurrection.

Former Vice President Mike Pence, who once served Donald Trump loyally, on Wednesday announced he would challenge his former boss for the Republican presidential nomination and blasted Trump for his role in the 2021 attack on the U.