Claim: Phoenix, Arizona is in the southwestern United States.
Evidence: Phoenix -LRB- -LSB- ˈfiːnᵻks -RSB- -RRB- is the capital and most populous city of the U.S. state of Arizona.
Arizona -LRB- -LSB- ɛərᵻˈzoʊnə , _ ærᵻ - -RSB- -RRB- -LRB- Hoozdo Hahoodzo -LSB- xòːztò xɑ̀xòːtsò -RSB- O'odham : Alĭ ṣonak -LSB- ˡaɺi ˡʃonak -RSB- -RRB- is a state in the southwestern region of the United States.