President Donald Trump said on Monday that tariffs on Canadian and Mexican imports are "on time and on schedule" despite efforts by the countries to beef up border security and halt the flow of fentanyl into the U.

Canada and Mexico have implemented new border measures in an effort to stave off the tariffs, which Trump says he is levying in a bid to halt flows of undocumented migrants and illegal drugs such as fentanyl. “The tariffs are going forward on time, on schedule,” Trump responded.

Donald Trump said his tariffs on Canada and Mexico are starting next month. “The tariffs are going forward on time, on schedule,” Trump said on Monday.