The Canadian government continues to hold trade negotiations with the U.S. as the Trump administration plans to begin a fresh wave of tariffs. NBC News' Brian Cheung reports on what exports are targeted in the tariffs and what economic impact it could have.

On Monday, following news that President Donald Trump is considering a nuclear attack against Iran, one of his biographers urged Republicans to “impeach and remove” him “quickly.” Seth Abramson, author of three bestselling books on Trump,