The Post urges Trump to take action on assault weapons  —  Two mass shootings within 24 hours in El Paso and Dayton, days after the Garlic Festival killings.  Three months after Virginia Beach, six months after Aurora, nine months after Thousand Oaks, 10 months after Tree of Life …

Dow futures drop 370 points after China retaliates, escalating trade war  —  Stocks plunge as China threatens to weaponize its currency—Six experts break down what's next  —  Stocks fell sharply Monday as a trade war between the world's largest economies intensified with China retaliating against President Donald Trump's latest move.

Steve King Narrowly Won His Last Race.  His Challenger, J.D. Scholten, Is Running Again.  —  J. D. Scholten, a Democrat who nearly toppled Representative Steve King of Iowa in a heavily Republican district in 2018, announced on Monday that he would run again for the seat in 2020.

Classmates: Ohio shooter kept a ‘hit list’ and a ‘rape list’  —  DAYTON, Ohio (AP) — High school classmates of the gunman who killed nine people early Sunday in Dayton, Ohio, say he was suspended for compiling a “hit list” of those he wanted to kill and a “rape list” of girls he wanted to sexually assault.

A mother died shielding her infant in El Paso.  The father died shielding them both, family says.  —  They had just dropped their oldest daughter off at cheerleading practice when they pulled into the Walmart parking lot, packed with hundreds of back-to-school shoppers like them.

‘Do something!’:  Ohio governor drowned out by angry chants at Dayton shooting vigil  —  Microphone in hand, Ohio Gov. Mike DeWine (R) had just finished remarking on the size of the crowd that was crammed tightly into the brick-covered main street of the Oregon District in Dayton, Ohio, on Sunday night when a single voice rang out.

He's Getting Worse  —  The current, and (to date) most debased, phase of the Trump presidency—the phase that includes the unceasing demonization of minority legislators and the endorsement of North Korean communism—began, in retrospect, on May 8, in the Florida Panhandle, at a rally in Panama City.

Neo Nazis boast ‘We got Tulsi in the debates’  —  Racist website takes credit for boosting Democratic presidential hopeful  —  A neo-Nazi website took credit for Rep. Tulsi Gabbard's (D-HI) qualification for the first two Democratic primary debates.  The Daily Stormer, a notorious white supremacist …

The Most Dangerous American Idea  —  Last week, the historian Timothy Naftali revealed a 1971 conversation between Richard Nixon, then the president of the United States, and Ronald Reagan, then the governor of California, in which Reagan referred to African UN delegates as “monkeys” who are “still uncomfortable wearing shoes.”

I Spent 25 Years Fighting Jihadis.  White Supremacists Aren't So Different.  —  We can't fight domestic terror groups efficiently until the law treats them the way we treat foreign ones.  —  Mr. Soufan is a former F.B.I. special agent and the author of “Anatomy of Terror.”