WATCH: President Trump Deliver Tax Reform Speech In Springfield, Missouri 8/30/2017 - President Trump Speech in Springfield, MO 8/30/2017 President Trump Participates in a Tax Reform Kickoff Event - President Trump Remarks on Tax Reform President Trump heads to Missouri today to build on a key message from his speech in Phoenix last week: that he's going to give Americans "the biggest tax cut in the history of our country."