Trump's border wall could violate an international water treaty.
Arizona among states with lettuce recall
Romaine lettuce shipped to 19 states, including Arizona, may be contaminated with E. coli bacteria.
A Northern California producer supplier is voluntarily recalling its Field Fresh Wrapped Single Head Romaine lettuce and may have a "best by" date of Aug. 19.
Currently there have been no reports of illness linked to the lettuce.