But Trump has a fourth way that he likes to use tariffs.

Bernadette Tuazon/CNN People in Johannesburg pray during a memorial Mass at the Cathedral of Christ the King.The death of Pope Francis has triggered a period of mourning across the globe.

Gustavo Garello/AP Worshippers mourn by the Stone of Anointing at the Church of the Holy Sepulchre in Jerusalem.Francis was lying in state at the Casa Santa Marta residence.Christopher Furlong/Getty Images Faithful pay their respects on Thursday.

Ronen Zvulun/Reuters People in London attend a solemn requiem at the Metropolitan Cathedral of the Most Precious Blood.the first Latin American pope in history.

Antonio Masiello/Getty Images People embrace as they attend a Mass in Buenos Aires.

photographed through the door of a confessional.the building was designed with unoccupied floors that encourage airflow.

the slender tower has a has a 15:1 height-to-width ratio.putting it among the so-called pencil towers now dotting midtown Manhattans skyline.

396-foot-tall skyscraper has a 15:1 height-to-width ratio.Filed at the state court in New York in late April.