Trump Steps Up Feud With GOP Senator

Headaches at GOP headquarters will not have been eased by Donald Trump's escalating feud with another party member: Arizona's "weak and ineffective" Sen. Jeff Flake. The party "needs strong and committed leaders, not weak people" like Flake if it is going to stop illegal immigration, Trump tweeted Sunday, hours after Flake told CNN that he won't be able to bring himself to vote for Trump—and that he thinks other Republicans should also distance themselves from the candidate. Flake has become the GOP's "anti-Trump standard bearer," the Washington Post reports, which notes that he doesn't need to worry about pro-Trump Arizona voters punishing him for it until 2018. In other coverage:

• Politico looks at what Clinton and Trump are planning for September, a month that both campaigns believe will be make-or-break for Trump, with the Sept. 26 debate probably his best chance to shake things up.

• Rudy Giuliani told CNN Sunday that Trump is softening his stance on mass deportations of undocumented immigrants. Trump "would find it very, very difficult to throw out a family that has been here for 15 years and they have three children, two of whom are citizens. That is not the kind of America he wants," Giuliani said.
• The New York Times reports on a Clinton problem big enough to cost her the election: A lack of support and enthusiasm among young black voters, many of whom would sooner stay home than cast a ballot for Clinton or Trump. "He's a racist, and she is a liar, so really what's the difference in choosing both or choosing neither?" a young black woman in Ohio tells the paper.
• The Los Angeles Times looks at a problem for Trump: A lack of support, especially among women, in the suburbs and exurbs that are likely to be decisive in states like Pennsylvania.
• The Hill reports that the race is narrowing: In a Morning Consult poll released Sunday, Clinton has a 2-point lead over Trump, 42% to 40%. She had a 7-point lead in the same poll three weeks ago.
• The AP reports that both candidates and their running mates will spend Labor Day in Ohio, with Clinton and Tim Kaine attending a parade and festival in Cleveland, and Trump joining Mike Pence for a discussion with union members before attending a fair in Youngstown.

(More Donald Trump stories.)