The United States will do its "very best" to keep Turkey in NATO, the US national security advisor said Sunday ahead of a White House visit by President Recep Tayyip Erdogan. Erdogan's scheduled meeting Wednesday with President Donald Trump comes amid fraying relations between the two allies, aggravated by its recent offensive against US Kurdish allies in Syria. Robert O'Brien, Trump's new national security advisor, suggested in an interview with CBS's "Face the Nation" that keeping Turkey in NATO was of overriding importance to the administration.

Bay Area Rapid Transit police said Steve Foster, of Concord, California, violated state law by eating a sandwich on a BART station's platform.

Mexico has made an unspecified number of arrests over last week's massacre of three women and six children of dual U.S-Mexican nationality in the north of the country, Security Minister Alfonso Durazo said on Monday. "There have been arrests, but it's not up to us to give information," Durazo told reporters in Mexico City. The women and children from families of U.S. Mormon origin who settled in Mexico decades ago were killed last Monday on a remote dirt road in the state of Sonora by suspected drug cartel gunmen, sparking outrage and condemnation in the United States.

A Vietnamese court on Monday sentenced a 70-year-old Australian to 12 years in jail on terrorism charges, state media reported. The Tuoi Tre newspaper said Chau Van Kham, a Sydney resident of Vietnamese origin, was found guilty of "terrorism to oppose the people's administration" in a half-day trial at Ho Chi Minh City People's Court. It said two Vietnamese men, Nguyen Van Vien and Tran Van Quyen, were also sentenced to 11 and 10 years respectively on the same charge.

Rep. Tulsi Gabbard (D-Hawaii) is keeping up her feud with former Secretary of State Hillary Clinton.Gabbard's 2020 campaign released a letter from its legal counsel Monday demanding Clinton apologize and retract comments she made about her in October, The Hill reports. Clinton in a podcast on Oct. 17 called Gabbard the "favorite of the Russians," also saying she's being groomed for a third-party bid. The latter remark was initially reported widely as referring to Russians grooming Gabbard, though Clinton's spokesperson later said she meant Gabbard is being groomed by Republicans. Clinton additionally referred to Jill Stein as "also a Russian asset" after talking about Gabbard, with the "also" seeming to suggest Clinton thinks Gabbard is one as well. Gabbard's legal counsel rejected Clinton's explanation for the "grooming" comment, in the Monday letter calling the idea that she meant Republicans "spin developed only after you realized the defamatory nature of your statement, and therefore your legal liability." Clinton's comments are "actionable as defamation," the letter also says, going on to demand she "immediately hold a press conference to verbally retract -- in full -- your comments." Beyond that, Gabbard's counsel demands Clinton release a retraction on her Twitter account and distribute it to major news outlets, with an exact wording even being provided; a statement has Clinton saying she made a "grave mistake," that she apologizes, and that "I support and admire" Gabbard's work.This is Gabbard's latest escalation of her war against Clinton after tearing into her immediately after the October comments in a stunning Twitter thread, calling her "the queen of warmongers, embodiment of corruption, and personification of the rot that has sickened the Democratic Party for so long." More stories from theweek.com The coming death of just about every rock legend The president has already confessed to his crimes Why are 2020 Democrats so weird?