Transcript for Trump escalates assault on major US cities
now, and trump's decision to add new tariffs on China. The financial decision rocking markets, and he defended his decision at a rally last night. ABC's Kyra Phillips is at the white house. Good morning, Kyra. Reporter: Good morning, after that racist chant about ilhan OMAR broke out at trump's last rally, all eyes were on the president and his supporters last night. President trump didn't back off from name-checking his rivals either, but he certainly was not afraid to go after many of their districts. In front of a rowdy crowd in Cincinnati after a week of railing against Baltimore, president trump escalating his attacks on a number of major U.S. Cities. Look at Los Angeles with the tents and the horrible, horrible, disgusting conditions. The conditions in Nancy Pelosi's once great city of San Francisco are deplorable. We can name one after another, but I won't do that. Because I don't want to be controversial. Reporter: And also touting a trade policy that could hit his supporters in rural America. The era of economic surrender is over. Reporter: Just hours after announcing another 10% tariff on $300 billion of Chinese products. Until such time as there is a deal, we will be taxing the hell that's all there is. Okay? Reporter: The tariffs likely to raise prices on a wide range of consumer goods for Americans. China responding with tariffs of their own hiking taxes on crops imported from the U.S., impacting American farmers' bottom lines. Potentially a tough sell in battleground Ohio, but trump standing firm. China's paying for those tariffs. Reporter: And George, China's seeing things a little bit differently this morning. Beijing is pledging to respond with countermeasures now saying that while they don't want a trade war, they are not afraid to fight one, George.
This transcript has been automatically generated and may not be 100% accurate.