What You Need to Know Today:

Iran warned that it will retaliate against the U.S. if American strikes target Iranian infrastructure, as President Trump has threatened to do next week if negotiations between the two nations do not resume. President Trump is scheduled to deliver a primetime address tonight focused on threats to the integrity of U.S. elections. The speech is expected to generate a significant partisan response and could influence the political landscape heading into the midterm elections, as Trump seeks to energize his core supporters while maintaining appeal among more moderate voters. The U.S. levied 25 percent tariffs on most Brazilian imports effective next week due to unfair trade practices. Beef will be exempt from the t...