President Trump claims a Russia-Ukraine energy ceasefire while proposing to lift sanctions in exchange for diesel, a move critics say favors Moscow. Prediction market Kalshi hires a former FBI agent to combat money laundering amid regulatory scrutiny. Remnants of Hurricane Isaias and Tropical Storm Rachel bring flooding to the U.S., while Category 4 Hurricane Simon strikes Mexico. Additionally, Maryland engineers use AI and robots to help Chesapeake Bay oyster farmers harvest sustainably, and the horror film "Other Mommy" tops the weekend box office.