Senator Tim Scott of South Carolina formally launched his presidential campaign on Monday, throwing his hat into the Republican ring. Scott leans heavily into his Christian identity and has vowed to sign legislation if he becomes president that would endear himself to conservatives, but his chances of success appear slim. Yet he’s decided to present a more optimistic view of the US in his campaign – an opposing tactic to most Republicans, including his main challenger … Donald Trump. This week Jonathan Freedland speaks to political historian Leah Wright Rigueur and politics reporter for the state Joseph Bustos about Scott’s chances of rallying the Republican base