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 …

El Paso Shooting Suspect's Manifesto Echoes Trump's Language  —  At campaign rallies before last year's midterm elections, President Trump repeatedly warned that America was under attack by immigrants heading for the border.  “You look at what is marching up, that is an invasion!” he declared at one rally.

Trump says US must condemn ‘white supremacy’ and ‘racism’ in wake of weekend shootings  —  Making his first formal remarks after the weekend mass shootings, President Donald Trump said Monday the U.S. was “overcome with shock, horror and sorrow” and that the nation must condemn “racism and white supremacy.”

We Have a White Nationalist Terrorist Problem  —  America's leaders need to do more to condemn and combat the extremist ideology — white nationalism — in their midst.  —  The editorial board represents the opinions of the board, its editor and the publisher.  It is separate from the newsroom and the Op-Ed section.

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.

Confusion: Biden offers sympathy for the ‘tragic events in Houston today and also in Michigan’  —  Former Vice President Joe Biden misstated the locations of mass shootings in El Paso, Texas, and Dayton, Ohio, while speaking to donors at a high-dollar fundraiser in San Diego on Sunday night.

FBI faces skepticism over its efforts against domestic terrorism  —  The FBI insists it is fully engaged in combating the threat of violence from white supremacists, but some former federal officials charge that the government is still coming up short in the face of a strain of American terrorism that now seems resurgent.

Where Taking the Concerns of Racists Seriously Has Gotten Us  —  Within last week's story of how Ronald Reagan made a racist phone call to Richard Nixon, there was a second story—a parable, effectively: a small point that contained a much larger point.  It had nothing, or almost nothing …

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.”

Connor Betts: Twitter Posts on Being a Leftist, Guns  —  Connor Betts, the Dayton, Ohio mass shooter, was a self-described “leftist,” who wrote that he would happily vote for Democrat Elizabeth Warren, praised Satan, was upset about the 2016 presidential election results, and added …

Kenny Marchant Will Be Fourth Texas Republican Congressman to Retire in 2020  —  Representative Kenny Marchant of Texas announced on Monday that he plans to retire, becoming the fourth Republican House member from Texas in recent weeks to head for the exits rather than face re-election in 2020 …