I'm Kristin Otto with the ABC news in Davenport Iowa where it was a busy day in the battleground state. President trump and former vice president Joseph Biden appearing at several events and I went on Tuesday but in calling the president a quote. Existential threat to America and saying there are boat a lot of ways trump fails the basic standard to be president. Before leaving for Iowa the president took time to hit Bynum telling reporters. On the South Lawn of the White House that Biden is a quote loser dummy and mentally weak and that he likes to run against people who are mentally we. Spike and responding and an offensive output in Iowa saying quote slow till by them. Give me a break this is like Alice in Wonderland but it also promised that if he becomes the democratic nominee president. Little quote give trump a thrashing everyday on health care. While on the South Lawn the president also pull the paper out of his pocket saying it was a secret deal with Mexico. Biden firing back on what are riding president trump is bringing his secret one page agreement with Mexico Iowa. The islands being crushed by his tariffs would like to see yet. Biden also that the president on this tariffs and trade were saying he is watching trump. Destroy the industry that he and President Obama helped state and while talking up methanol plant in Iowa trump repeatedly refer to Biden has a quote sleepy guys. But we'll continue campaigning in the battleground state of Iowa on Wednesday making several stops in the eastern part of the state. I'm Chris not on Davenport Iowa and you're watching ABC news.