It’s been a year since Liberal MP Andrew Hastie quit Sussan Ley’s frontbench to speak his mind on migration.

His decision fractured the Coalition and Ley’s ambition to woo back multicultural communities with a more moderate stance. How things change in a year.

But through it all, migration has become a more heated political issue. On Tuesday, Angus Taylor announced the Coalition’s long-awaited policy, promising the biggest cut to immigration in Australia’s history.

So what are the merits and the pitfalls of the Coalition's plan?

Former deputy secretary of immigration Abul Rizvi – who is today's special guest – and chief political correspondent Paul Sakkal pull apart the policy and the politics before Rivzi answers a number of listener and reader questions on migration.

Today's host is federal political correspondent Natassia Chrysanthos before regular host Jacqueline Maley returns to the chair next week.

Further reading:

• The cost of cutting foreign workers: Fares spike in Taylor’s migration gamble
• International student cuts risk ‘very significant hole’, universities warn