Republican presidential candidate Donald Trump on Wednesday criticized military expert Jeff McCausland, who said Trump's comments this weekend about the battle to reclaim Mosul in Iraq show he doesn’t have a firm grasp of military strategy.

“You can tell your military expert that I’ll sit down and I’ll teach him a couple of things,” Trump told ABC, adding, “I’ve been hearing about Mosul now for three months. ‘We’re going to attack. We’re going to attack.’ Meaning Iraq’s going to attack but with us. OK? We’re going to attack. Why do they have to talk about it? Why can’t they win first and talk later?”