Hillary Clinton says while she sees the need for U.S. support, it would be a big red flag to put U.S. troops back into the fight.
She says there is the need to keep an eye on the Islamic State (IS): on the ground, in the air and online. She lays out a plan for fighting IS and beyond.
Asked the same question -- will you put U.S. troops into Mosul -- Donald Trump calls the situation in Mosul sad, blamed Hillary Clinton. He says the U.S. had Mosul and lost it while Clinton was secretary of state.
Trump says his plan to defeat IS involves an element of surprise, says U.S. has been stupid in forecasting they were going to try to retake Mosul.